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Edited by Charles Fransen

This volume is dedicated to the memory of the eminent carcinologist Michael Türkay, of the Research Institute and Natural History Museum Senckenberg, Frankfurt am Main, Germany. It is a tribute to his outstanding international contribution to the study of decapod crustaceans. An extensive account of Michael’s life and achievements is presented, along with thirty-one scientific papers by 62 of his friends and colleagues from around the world. The book’s focus is almost entirely on decapod crustaceans, and covers a variety of topics, including taxonomy, systematics, zoogeography, morphology, palaeontology, genetics, general biology and ecology. Numerous new taxa are described from a number of marine and freshwater groups, including one new genus and 13 new species named in honour of Michael himself.

The contents of this volume were originally published in 2017 in Crustaceana volume 90, issue 7-10.
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Aleksandra Zečić and Chadanat Noonin

Crayfish haematopoietic tissue (HPT) has a thin-sheet-like structure with a thickness of 100-160 μm and a width of approximately 1-2 cm. This structure makes HPT extremely easy to fold after removal from the animal. Therefore, it is difficult to handle the tissue without folding when processing for sectioning and histological study. The degree of tissue folding reflects the size of the tissue sections obtained, how complicated it is to interpret the location of each tissue section, and the accuracy of the interpretation of the location of a specific transcript. To facilitate the interpretation of a specific transcript location in the HPT, we optimized a whole-mount in situ hybridization technique to minimize tissue folding. This optimized protocol effectively reduced the tissue folding. Therefore, the location of a specific transcript in the HPT was easily and accurately defined. This protocol will be useful for whole-mount staining of other tissues with similar structure.

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P. Castro

Abstract

Examination of the western Pacific material of goneplacoid crabs (families Euryplacidae and Goneplacidae) in the Senckenberg Research Institute and Natural History Museum Frankfurt a. M. (Germany) particularly uncatalogued material examined by Tune Sakai, allowed the discovery of the holotype of Eucrate formosensis Sakai, 1974 (Euryplacidae), as well as the identification of some rarely collected species.

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Javier Cruz-Hernández, Laura Sánchez-Velasco, Victor M. Godínez, Emilio Beier, José R. Palomares-García, Eric D. Barton and Eduardo Santamaría-Del-Ángel

The distribution of calanoid copepod habitats in a cyclonic eddy in the Gulf of California was examined. Direct velocity observations revealed that the eddy extended to approximately 550 m depth and 150 km diameter. The established thermocline suggested that active vertical pumping was not occurring because the eddy was in mature phase. A copepod habitat located in the surface mixed layer, showed high abundances, dominated by Subeucalanus subtenuis (Giesbrecht, 1888), whose abundances decrease towards the centre of the eddy. A second habitat, situated in thermocline, had the highest abundances dominated by Nannocalanus minor (Claus, 1863) and Temora discaudata Giesbrecht, 1889. Another habitat, beneath the thermocline, was dominated by most of species recorded in thermocline, but with the lowest abundance. Results suggest that in the mature phase of a cyclonic eddy, the water column stratification induces layering of the calanoid copepod habitats, with the most propitious conditions for their feeding in thermocline.

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M. Dadaliaris, P. Grantounis, A. Evagelopoulos and S. Katsanevakis

Abstract

Ecological monitoring is a prerequisite for ecosystem-based management and conservation. There is a need for developing an efficient and non-destructive method for monitoring marine benthic arthropods on soft substrate, as the currently applied methods are often inadequate. Pitfall trapping has been used extensively to sample terrestrial arthropods, but has not been seriously considered yet in the marine environment. In this study, the effectiveness of pitfall traps for monitoring marine benthic arthropods was assessed through a case study in the shallow sublittoral zone of Kalloni Gulf, Lesvos Island, Greece. Two different trap types were installed in August 2016 at five depths, during two 12 h periods (day and night). Pitfall traps performed well, collecting a large number of individuals. The hermit crab Diogenes pugilator dominated the catches. The catch of this species significantly differed by trap type, while the interaction between depth and period was also found significant. Further research is needed to evaluate the efficiency of different types of pitfall traps and field protocols in the marine environment.

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Keiji Baba and Enrique Macpherson

Abstract

A new species of chirostylid squat lobster, Uroptychus tuerkayi sp. nov., is described based upon material collected by the French “Seamount 2” project (1993) from the Atlantis-Great Meteor Seamount Chain south of the Azores Islands, at a depth of 340-730 m. Uroptychus tuerkayi resembles U. maroccanus Türkay, 1976 from the Moroccan coast, but it can be readily distinguished by the eyes being distinctly longer instead of as long as broad (globular in U. maroccanus), the antennal article 5 with a small instead of prominent distomesial spine, the anterolateral spine of the carapace slightly smaller than or subequal to, instead of much smaller than the lateral orbital spine, the pterygostomian flap anteriorly acuminate and not strongly produced to a spine as in U. maroccanus, and in having pereopod 1 with obsolescent instead of distinct spines on the merus and carpus. This is the sixth species of Uroptychus from the eastern Atlantic. A key to the eastern Atlantic species of Uroptychus is provided.

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Shane T. Ahyong and Keiji Baba

Abstract

Uroptychus michaeli sp. nov. is described from northwestern Australia and Taiwan. The new species closely resembles U. nigricapillis, to which northwestern Australian and some Taiwanese records had been previously referred. Uroptychus michaeli sp. nov. is readily distinguished from U. nigricapillis by the deeply excavate cervical groove on the carapace (versus shallow, weakly indicated), more elongate pereopods 2-4 in which the pereopod 2 merus is longer than the postorbital carapace length (versus shorter), and the proportionally longer pereopod 2 carpus, which is as long as or longer than half postorbital carapace length (versus less than half) and approximately twice the length of the dactylus (versus 1.2× or less).

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Yenumula Ranga Reddy

Abstract

Only eight groundwater crustacean species were known in India till the end of 20th century. Analysis of about 4000 samples collected during 2000-2016 from diverse groundwater habitats, especially in certain pockets of the deltaic belt of the Rivers Krishna and Godavari in the southeastern peninsular India, has so far yielded about 90 new crustacean taxa. Of these, 67 new species have been described formally, which include, respectively, 34, 27, 3, 2 and 1 species each of Copepoda, Bathynellacea, Amphipoda, Isopoda and Ostracoda. The updated checklist presented herein includes a total of 87 species in 45 genera, 22 families and 8 orders. For each species, the reference to its original description, type locality, distribution, and ecological notes, co-occurring fauna, if any, and sampling method(s) are given. Besides map-pointing the type localities of the species, brief notes are given on the biogeography and conservation.

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Huiming Li, Henri J. Dumont, Bo-Ping Han and Qiuqi Lin

We present an updated checklist of the Diaptomidae of China, based on a literature review and on original field data from all over China during 2012-2016. A total of 19 genera and 56 species have been recorded. Neutrodiaptomus has the highest species richness (10 species), followed by Arctodiaptomus (9 species). Only one species each of Eudiaptomus, Mixodiaptomus, Eodiaptomus, Dentodiaptomus, Dolodiaptomus, Allodiaptomus, Karstodiaptomus, Metadiaptomus and Paradiaptomus was found. The taxonomic status of 16 species was revised: one wrongly attributed genus, Argyrodiaptomus, was corrected to Sinodiaptomus. First records for China include Arctodiaptomus parvispineus and one new cave-dwelling genus, Karstodiaptomus, is added. One Latin name from Shen & Sung’s book (1979) is corrected. Remarks on nomenclature and taxonomic issues are supplemented with information on the geographical distribution of the various species within China.

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Jung Nyun Kim and Jung Hwa Choi

Abstract

Two Parapenaeus species, P. australiensis Dall, 1957 and P. fissurus (Spence Bate, 1881), collected from around Jeju Island and east of Busan, southern Korean waters, are briefly described here. Both species are newly recorded from Korean waters, with the former record representing a considerable range extension from the tropical western Pacific to the northern East China Sea. Distributional and morphological accounts of these species are presented.