R. c. willan (29 Ergebnisse)

Tiré à part du Journal of the Royal Society of New Zealand - 1980, 11 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.…

10 pp., 2 figs, br. 8.

Soft cover. , 416 figs, 4to, paperbound 0.0.

5 pp., 1 fig., gr. 8.

8 pp., 1 fig., gr. 8.

Thecacera boyla n. sp is described from coastal northern Queensland. Its most striking character is the elaboration of the rhinophoral sheaths into long, mobile ?tentacles? that serve as sensory appendages, apparently in lieu of velar papillae. The genus Thecacera is holophyletic and probably derived from Polycera ? like polycerids. Because four (possibly five) of the six valid biological species are tropical, it is probable Thecacera is tropically centered. There appears to be a gradient of decreasing species diversity eastwards from southeastern Africa. 12 pp., 17 figs, gr. 8.…

Two common and widespread New Zealand bivalves are currently confused under the name Gari lineolata (Gray in Yare, 1835). The taxon is applicable to one of these species; the other is here named Gari hodgei n. sp. 11 pp., 3 figs, gr. 8.

10 pp., 17 figs, 4.

6 pp., 1 fig., 4.

12 pp., 4 figs, 4.

As the Latin word urceus is a simple noun in apposition, the original spelling of the specific epithet derived directly from it must be retained (as urceus) in the future, regardless of the gender of the genus with which it is combined (International Code of Zoological Nomenclature 1999, Article 31.2.1). The name microurceus is herein deemed to be a correct original spelling because it is in prevailing usage, and it must be retained with the original author and date (i.e. Kira, 1959) in future, regardless of the gender of the genus with which it is combined (International Code of Zoological Nomenclature 1999, Article 33.3.1). 5 pp., 2 figs, gr. 8.…

8 pp., 4 figs, 4.

Calliostoma bellatrix n. sp. is described from depths of 250 to 400 metres depth in the seaway between northern Australia and the southern Indonesian archipelago, and extending into the eastern Indian Ocean. Its smooth shell, with flat sides to the whorls and an acutely angled periphery ornamented with a double nodulose keel, render it unique among Indo-Pacific calliostomes, and it may be the sister species to C. schroederi Clench and Aguayo from similar depths in the Caribbean Sea. Both C. bellatrix and C. schroederi clearly belong within the subgenus Ampullotrochus Monterosato. 6 pp., 2 figs, 4.…

3 pp., 7 figs, 4.

The aeolid nudibranch Godiva quadricolor (Barnard, 1927), previously recorded as introduced into southern Western Australia (i.e., the Fremantle-Cockburn Sound area) and now probably naturalised there, is herein recorded from southern Queensland (i.e., Pumicestone Passage, immediately north of the Port of Brisbane), where a breeding population is presently established. The most likely source of both introductions is shipping. Godiva quadricolor originally extended naturally through (tropical) eastern and (temperate) south-eastern Africa, so its further spread around the Australian continent seems inevitable. This paper records the characters important for recognition of this species, corrects the author s earlier account of the morphology of the rhinophores, and describes intraspecific variation, particularly that relating to coloration of the head and cerata. Godiva rachaelae Rudman, 1980 is formally synonymised with G. quadricolor. Godiva quadricolor is now recorded as introduced in southern Western Australia, eastern Australia (herein), north-western Africa and the Mediterranean Sea, but it has never occurred naturally in the Indo-Pacific Ocean. 6 pp., 2 figs, 4.…

10 pp., 1 pl., 4 figs, gr. 8.

Further review of the literature reveals that type designations earlier than, or different from, those proposed by Valdes (2001) are available for Umbraculum Schumacher, 1817, and three of its synonyms: Umbrella Lamarck, 1819, Gastroplax Blainville, 1819, and Ombrella Ferussac, 1822. The type species of Umbraculum is U. chinense and the specific name should be attributed to Lamarck, 1801 (who called it Umbella chinensis). This species is a junior synonym of Patella umbraculum [Lightfoot, 1786], a name introduced in an anonymous work. The neuter gender of Umbraculum must be reflected in the names of attributed species. Rafinesque s descriptions of his genera Tylodina and Oxynoe are reproduced from his 1814 work. In the interests of nomenclatural stability, it is recommended that Umbraculoidea be accorded the status of nomen protectum (in favour of Tylodinoidea) for the monophyletic higher taxon (with the rank of superfamily in a Linnaean hierarchy) encompassing the families Umbraculidae and Tylodinidae. 7 pp., 4.…

17 pp., 44 figs, 4.

Soft cover. Library stamp, good secondhand copy 0.0.

New taxa: Flabellina riwo n. sp., Flabellina nilas n. sp., Flabellina rubropurpurata n. sp., Flabellina exoptata n. sp., Flabellina delicata n. sp. 37 pp., 26 figs, 4.

Thirty-seven species of Psammobiidae are recognised in a conchologically-based revision of taxa in the Australian and New Zealand region. Four genera are represented: Asaphis Modeer, 1793; Heteroglypta Martens, 1880; Gari Schumacher, 1817; Soletellina Blainville, 1824. The largest genus, Gari, is divided into nine subgenera: Gari sensu stricto; Psammobia Lamarck, 1818; Gobraeus Brown, 1844; Dysmea Dall, Bartsch & Rehder, 1936; Kermadysmea Powell, 1958; Psammotaena Dall, 1900; Crassulobia n. subgen.; Psammobella Gray, 1851; Psammodonax Cossmann, 1877. Subgenera are not recognised for any of the other three genera. One new species, Gari (Gobraeus) eos, from the Chesterfield-Bellona Plateau in the Coral Sea is described. Asaphis nana Powell, 1958, Psammobia flexuosa A. Adams & Reeve, 1850, Psammobia brazieri Tate, 1886 and the genus Ascitellina Marwick, 1928 are excluded from the Psammobiidae as presently defined and transferred to the Tellinidae because all possess lateral teeth in at least one valve. Asaphis nana is possibly a species of Agnomyax Stewart, 1930. Psammobia flexuosa is a junior synonym of Cymatoica undulata (Hanley, 1844). Psammobia brazieri is probably a species of Tellina Linnaeus. Ascitellina may be synonymous with Elliptotellina Cossmann, 1887. Psammobia vitrea Quoy & Gaimard, 1835 is transferred to the Galeommatidae, probably to the genus Scintilla Deshayes, 1856. The region possess the highest species diversity known anywhere for the family. Biogeographically, two faunas are discernible a considerably larger one towards the north essentially of widespread tropical Indo-west Pacific taxa (24 species), and a much smaller temperate one consisting of taxa endemic to southern Australia (5 species), and to New Zealand (5 species). Only three northern Australian species have limited distribution ranges: Gari eos n. sp.; G. rasilis (Melvill & Standen, 1899); G. gracilenta (E.A. Smith, 1884). The wealth of taxa enabled some preliminary phylogenetic consideration of the family. No autapomorphy emerged amongst the approximately 40 shell characters described for each species. Lack of a posterior flexure is considered symplesiomorphic. Lack of lateral teeth and fusion of the lower limb of the pallial sinus with the pallial line are synapomorphies that have apparently evolved independently several times (ie, homeoplaseous characters) in the Tellinoidea. The few anatomical studies available are equivocal in regard to relationships within the Psammobiidae and between families of the Tellinoidea. More conchological and anatomical studies are required before phylogenetic relationship within the Tellinoidea, the largest family numerically in the Bivalvia, can be assessed. 132 pp., 416 figs, br. 4.…

Hardcover. pls, 4to, hardbound 0.0.

A list of all 2510 species and subspecies of Recent and Subrecent Mollusca from New Zealand is given. Each entry is substantiated by a bibliographic reference for the record and its most recent nomenclatural combination. An approximate geographical range is also given for each species. The checklist is followed by a comprehensive, annotated bibliography of publications from 1981-1993. 126 pp., br. 4.…

Situated at the southern end of the Great Barrier Reef, Heron Island has for many years attracted tourists and students interested in tasting the wonders of coral reefs. One of the wonders at the top of most visitors list are the spectacularly shaped and coloured Sea Slugs which excite the interest and curiosity of even the most travel-weary tourist. This book, specifically recording the opisthobranchs of this locality, will be an indispensable aid to any visitor to the reef with more than a passing interest in natural history. Although entitled the Nudibranchs of Heron Island this book covers all groups of opisthobranchs. About half of the book (120 pages) consists of detailed descriptions of the nearly 300 species reported from Heron Island and adjacent Wistari Reef. Included for each species are descriptions of their external features, and sections on each species habitat, distribution, synonymy and existing references. In many cases there is some information about their feeding biology or habitat preference and a comparison with related species. This book is the result of the collaboration by university librarian Julie Marshall and museum malacologist Richard Willan. Both have made many visits to Heron Island over the past twenty years and between them have accumulated a wealth of knowledge and photographs of the sea slugs found at this popular spot at the southern end of the Great Barrier Reef. Leiden. Backhuys Publishers. 258 pp., 38 color plates, hardcover 4 [21 x 30 cm].…

Mostly on New Zealand and Australian opisthobranchs.

Nudibranchs and sea slugs are fascinating marine animals known for their vibrant colours and unique shapes ? the butterflies of the ocean. This handbook covers 354 species of nudibranchs, headshield slugs, sap-sucking slugs, sea hares, side-gilled slugs, umbrella snails and a runicinid slug found on the Gold Coast, Queensland, Australia. In addition to size and external features, it also provides information on food sources, predators, pests and diseases, as well as tips on how to distinguish them from similar species. It is an essential reference for divers, snorkelers, beachcombers, underwater photographers, citizen scientists, and anyone else with an interest in this fascinating group. Includes over 400 full colour in situ photos to aid in finding nudibranchs and sea slugs underwater. This book aims to showcase the incredible diversity of sea slug species found on the Gold Coast and to assist in their identification. It serves as a record of the species the authors have encountered over more than 20 years, along with contributions from others who share this passion. The book is primarily targeted at the dive community, who relish the discovery of various sea slug species ? some of which are commonly seen, while others have only been spotted once. Underwater visibility on the Gold Coast can range from 1 to 20 metres (the latter only on rare occasions!), which makes photography challenging. The authors have chosen to use in-situ photos whenever possible, so the image quality may not match that of other guides. However, they believe in keeping it authentic. This is the fascinating world of sea slugs ? a realm still shrouded in mystery, particularly as our knowledge evolves rapidly. As a result, identifying sea slugs can be a challenging task that is continuously being updated. The authors encourage readers not to become fixated on names; instead, use this book as a guide and simply enjoy the stunning underwater world. 390 pp., num. color photos & b/w illustrations, paperback 8.…

132 p., 416 figs, 4to, paperbound.

268 p., 38 col. pls, 4to, hardbound. From the library of the British nudibranch specialist Malcolm Edmunds (with the original invoice from Backhuys to him dated 2002). Very good copy.

268 p., 38 col. pls, 4to, hardbound.