Series:

E. Macpherson, L. Beuck, C. Roder and C. R. Voolstra

Abstract

During a deep-water expedition to the Red Sea in 2013, an unusual specimen of squat lobster belonging to the genus Munida was collected off Thuwal, Saudi Arabia, at a depth of 320 m. This specimen is unique in having the pterygostomial flap visible from the dorsal side, the feature linking it to two eastern Pacific species, M. bapensis Hendrickx, 2000 and M. macrobrachia Hendrickx, 2003. The new species (M. tuerkayi) is readily distinguished from the eastern Pacific species by having the gastric region with numerous instead of less numerous spines, by having sternite 7 with three distinct carinae on each side, and by having the antennular basal article with two distal spines subequal instead of different in size. Munida tuerkayi was found associated with live colonies of the scleractinian coral Eguchipsammia fistula (Alcock, 1902).

Series:

Yaqin Wang, Zhibin Gan and Xinzheng Li

Abstract

Based on samples collected from the Yellow Sea in October 2014, a new species of pasiphaeid shrimp, Leptochela (Leptochela) tuerkayi sp. nov., is described. The new species is closely related to L. (L.) gracilis Stimpson, 1860 in morphology but differs from the latter and other congeners by the following combination of characters: three longitudinal dorsal carinae in ovigerous females, third maxilliped with the rather short exopod slightly overreaching the distal margin of the antepenultimate segment and the fourth pereiopod with the exopod reaching beyond the end of the merus. Morphological data and a partial sequence of the 16S rRNA gene of the new species are provided to show its systematic position.

Series:

Lin Ma and Xinzheng Li

Abstract

A new species, Typhlamphiascus tuerkayi sp. nov. (Copepoda, Harpacticoida, Miraciiidae), is described from specimens collected in the South China Sea. This new species differs from its congeners by the combined characters of the number of chitinous lamellae on the male P1, the apomorphic setal formulae of the swimming legs, and the setal number on P5. The new species is most similar to T. ovale Wells & Rao, 1987 and T. higginsi Chullasorn, 2009. It differs from the latter two species by the following features: the caudal ramus about three times as long as broad, P2 exp-3 with three outer spines, P3 enp-3 with two inner setae, P5 basoendopod in the female with four setae, P5 exopod in the female about three times as long as its greatest width, antennule of male 9-segmented, the inner edge of the basis in male P1 with eight chitinous lamellae, P5 exopod in male with four setae.

Series:

Machteld Odijk and Charles H. J. M. Fransen

Abstract

A new sponge-associated species, Paraclimenaeus michaeli sp. nov. from Sulawesi, Indonesia, and Singapore, is described and illustrated. The new species can be distinguished from its congenerics by: (1) the downwards curved rostrum with 2 acute dorsal teeth subdistally, (2) the absence of subdistal teeth on the fixed finger of the major second chela, (3) the pairs of dorsal telson spines at about 0.33 and 0.66 of the telson length, (4) the caudal fan sparsely setose, and (5) the second pereiopods without subdistal teeth on fixed finger. To evaluate its relationship with congenerics and species of the related genera Apopontonia and Climeniperaeus, a phylogenetic analysis based on the 16S mitochondrial gene is presented. A key for the identification of the species in Apopontonia, Climeniperaeus and Paraclimenaeus is proposed.

Series:

Tomoyuki Komai

Abstract

Munida michaeli, a new species of deep-sea squat lobster (Munididae), is described and illustrated on the basis of a single male specimen collected off Okinawa Island, Ryukyu Islands, Japan, at depths of 641-650 m. It closely resembles M. sacksi Macpherson, 1993 known with certainty only from the Philippines, but different spination of the carapace dorsum and the greatly reduced armature of the flexor margins of the ambulatory dactyli distinguish the new species from the latter. With the addition of the present new species, 41 species of Munida Leach, 1820 are now known from Japanese waters.

Series:

William Santana and Marcos Tavares

Abstract

A new species of spider crab, Collodes tuerkayi n. sp., is described and illustrated from the Western Atlantic (Puerto Rico and northern Brazil). The new species superficially resembles C. inermis A. Milne-Edwards, 1878, in the general appearance of the body, but is distinguished by the details of the carapace, thoracic sternum and antennal ornamentation and the proportion of the pereopods.

Series:

Sebastian Klaus, Célio Magalhães, Rodolfo Salas-Gismondi, Martin Gross and Pierre-Olivier Antoine

Abstract

We describe claw fragments of fossil primary freshwater crabs from three areas in the Amazon basin, Tarapoto (Early Oligocene) and Contamana (Middle Eocene to early Late Miocene) in Peru, and Eirunepé (Late Miocene) in Brazil. All these fragments most likely belong to the family Trichodactylidae. We show a continuous presence of primary freshwater crabs in proto-Amazonian lowlands from the Middle Eocene to the Late Miocene and can thus shift the earliest appearance date of freshwater-adapted brachyurans into the Eocene, at least in the Neotropics.

Series:

Adnan Shahdadi, Peter J. F. Davie and Christoph D. Schubart

Abstract

A new species of Perisesarma, P. tuerkayi, is described from mangroves of Tan Thoi Island, southern Vietnam. Morphologically, the new species differs most significantly from congeners by the tuberculation pattern of the chelar dactylus, its unique G1 morphology, an unusually large maximum book-body size, and relatively short and broad ambulatory legs. Genetically, P. tuerkayi n. sp. is markedly divergent from other congeneric species, both in mitochondrial and nuclear DNA. It is the fifth species of Perisesarma reported from Vietnam.

Series:

Richard G. Hartnoll, Nicola Weber, Sam B. Weber and Hung-Chang Liu

Abstract

The growth of the chelae of mature males was examined in three gecarcinid land crabs — Johngarthia lagostoma on Ascension Island, Epigrapsus notatus on Taiwan, and E. politus on Moorea. Chelar dimorphism was found in each species, with a mixture of homochelous and heterochelous males. In J. lagostoma there was progressive polymorphism, with the heterochelous condition appearing only in a proportion of the larger mature males. The situation in Epigrapsus was less clear. The proportion of heterochelous males increased in the larger mature size classes, but progressive polymorphism is yet to be confirmed.

Series:

Célio Magalhães, Carola Becker, Peter Davie, Sven Klimpel, Pedro Martínez-Arbizu and Moritz Sonnewald