Morphology of Thompsonia Reinhardi, New Species (Cirripedia: Rhizocephala), Parasitic on the Northeast Pacific Hermit Crab Discorsopagurus Schmitti (Stevens)

1992 ◽  
Vol 12 (1) ◽  
pp. 83-93 ◽  
Author(s):  
Jørgen Lützen
Keyword(s):  
New Species ◽  
Hermit Crab ◽  
Northeast Pacific

First evidence of male dwarfism in scale worms: A new species of Polynoidae (Annelida) from hermit crab and molluscan shells

2021 ◽  
Author(s):  
Naoto Jimi ◽  
Natsumi Hookabe ◽  
Takeya Moritaki ◽  
Taeko Kimura ◽  
Satoshi Imura
Keyword(s):  
New Species ◽  
Hermit Crab ◽  
A New Species

Five new deep-sea species of nudibranchs (Gastropoda: Heterobranchia: Cladobranchia) from the Northeast Pacific

Zootaxa ◽  
2018 ◽  
Vol 4526 (4) ◽  
pp. 401 ◽  
Author(s):  
ÁNGEL VALDÉS ◽  
LONNY LUNDSTEN ◽  
NERIDA G. WILSON
Keyword(s):  
Climate Change ◽  
New Species ◽  
Deep Sea ◽  
Undescribed Species ◽  
Invertebrate Community ◽  
Nuclear Markers ◽  
Mitochondrial Coi ◽  
Northeast Pacific ◽  
Northeastern Pacific ◽  
System Information

Increased exploration of northeastern Pacific deep-sea habitats has revealed a diverse and often poorly-known invertebrate community, including a number of undescribed species of nudibranchs studied herein. We used morphology to distinguish several new species from their congeners, and generated data where possible for mitochondrial (COI, 16S) and nuclear markers (H3) to place them in a phylogenetic context. We described here Tritonia nigritigris sp. nov., Dendronotus claguei sp. nov., Ziminella vrijenhoeki sp. nov., Cuthona methana sp. nov., Aeolidia libitinaria sp. nov. and redescribed Zeusia herculea (Bergh, 1894). Another species of Tritonia is described but not named due to the absence of reproductive system information. Although there are difficulties in collection from deep-sea habitats, only two of our new species are known from single specimens. As with many other deep-sea regions, we expect the number of new species from this region to increase with further exploration. Because the deep regions of the northeast Pacific are particularly vulnerable to the effects of decreasing oxygenation due to climate change, we consider that documenting this fauna has some level of urgency. 

A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura: Diogenidae) from southern India

Zootaxa ◽  
2018 ◽  
Vol 4504 (2) ◽  
pp. 243
Author(s):  
TOMOYUKI KOMAI ◽  
RAVEENDHIRAN RAVINESH ◽  
APPUKUTTANNAIR BIJU KUMAR
Keyword(s):  
New Species ◽  
Hermit Crab ◽  
Southern India ◽  
Distal Spine ◽  
Callyspongia Diffusa ◽  
Different Color ◽  
A New Species

A new species of the hermit crab genus Diogenes Dana, 1851, D. spongicola, is described and illustrated on the basis of material collected from two locations off southern India. It appears close to D. takedai Rahayu, 2012 among about 70 congeners, but easily differentiated from the latter by the spinulose anterolateral margins of the shield, the article 2 of the antennal peduncle armed only with one distal spine, the longer, spinose antennal acicle, the absence of prominent spines on the ventrolateral margin of the cheliped meri, and the different color of the cheliped palm. Specimens of the new species were all collected from cavities of a callyspongiid sponge Callyspongia diffusa (Ridley, 1884), suggesting a possible association between the hermit crab and sponge. 

Metopelloides paguri sp. nov., a new species of symbiotic stenothoid amphipod (Crustacea: Amphipoda: Stenothoidae) associated with sublittoral hermit crabs from the Russian coasts of the Sea of Japan

Zootaxa ◽  
2012 ◽  
Vol 3244 (1) ◽  
pp. 59 ◽  
Author(s):  
IVAN MARIN ◽  
SERGEY SINELNIKOV
Keyword(s):  
New Species ◽  
Sea Of Japan ◽  
Hermit Crab ◽  
Hermit Crabs ◽  
The Sea Of Japan ◽  
Crab Species ◽  
Body Coloration ◽  
The Family ◽  
Mandibular Palp ◽  
A New Species

A new species of amphipod from the genus Metopelloides Gurjanova, 1938 (Crustacea: Amphipoda: Stenothoidae) asso-ciated with two species of sublittoral hermit crab species, Pagurus pectinatus (Stimpson, 1858) and Elassochirus cavi-manus (Miers, 1879) (Crustacea: Decapoda: Paguridae), is described from the Russian coasts of the Sea of Japan. The newspecies clearly differs from the congeners by the combination of morphological features such as telson without lateralspines, an elongated mandibular palp with single apical setae, the structures of distoventral palmar margins of subchelaon gnathopods I and II in females, bright white-red body coloration. Thus, the record of Metopelloides paguri sp. nov.represents the second record of the family Stenothoidae in the association with sublittoral hermit crabs from the Sea of Japan.

scholarly journals Two New Species of Deep-Water Corallimorpharia (Cnidaria: Anthozoa) from the Northeast Pacific, Corallimorphus denhartogi and C. pilatus

2002 ◽  
Vol 56 (2) ◽  
pp. 113-124
Author(s):  
Daphne Gail Fautin ◽  
Tracy R. White ◽  
Katherine E. Pearson
Keyword(s):  
New Species ◽  
Deep Water ◽  
Northeast Pacific ◽  
Two New Species

A new species of the hermit crab genus Diogenes (Crustacea: Decapoda: Anomura: Diogenidae) from southern India

Zootaxa ◽  
2013 ◽  
Vol 3613 (4) ◽  
pp. 380-390 ◽  
Author(s):  
TOMOYUKI KOMAI ◽  
REMA RESHMI ◽  
APPUKUTTANNAIR BIJU KUMAR
Keyword(s):  
New Species ◽  
Hermit Crab ◽  
Species Group ◽  
Southern India ◽  
Kerala State ◽  
A New Species

A new species of the hermit crab genus Diogenes Dana, 1851 (Diogenidae), D. canaliculatus, is described and illustrated on the basis of material from off the Kerala State, southern India. It is referred to the D. edwardsii (De Haan, 1849) species group, and compared with D. bicristimanus Alcock, 1905, D. fasciatus Rahayu & Forest, 1995, D. laevicarpus Rahayu, 1996 and D. moosai Rahayu & Forest, 1995. The characteristically sculptured left chela and the unarmed dorsal margins of the propodi of the second and third pereopods distinguish the new species from these congeners.

A new and distinctive species of the hermit crab genus Catapaguropsis (Crustacea: Decapoda: Anomura: Paguridae) from the South China Sea

Zootaxa ◽  
2007 ◽  
Vol 1560 (1) ◽  
pp. 31-41 ◽  
Author(s):  
PATSY A. MCLAUGHLIN ◽  
RAFAEL LEMAITRE
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
South China Sea ◽  
South China ◽  
Hermit Crab ◽  
Marked Reduction ◽  
Type Species ◽  
The South China Sea ◽  
The South ◽  
China Sea

The diagnosis of the recently described hermit crab genus Catapaguropsis Lemaitre & McLaughlin, 2006 is emended to accommodate a second distinctive new species, Catapaguropsis brucei n. sp., which does not exhibit the sexual dimorphism described for the type species, C. queenslandica Lemaitre & McLaughlin, 2006. Catapaguropsis brucei n. sp. is characterized by the marked reduction, in both sexes, of the posterior portions of the pleons, uropods, and telsons that are encased by cnidarians. In addition to the description and illustrations, this new species is compared and contrasted with species of other pagurid genera that occupy atypical carcinoecia.

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