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-Enallopagurus spinicarpus (Glassell). Holotype male (SL 2.3 mm), Puerto Refugio, Angel de la Guardia Island, Gulf of California, Mexico, AHF No. 366. A, shield and cephalic appendages (dorsal view); B, right chela and carpus (dorsal view); C, right cheliped (dorsolateral view); D, left cheliped (dorsomesial view); E, anterior lobe of sternite XII of third pereopods (ventral view); F, telson (dorsal view). Scale bars: A-D 2 mm, E-F 1mm.
Source publication
New records are provided for three species of little-known pagurids. All the material reported was collected by the R/V "El Puma" in the central Gulf of California during the GUAYTEC II cruise. New material is reported for Iridopagurus haigae Garcia-Gomez, 1983, Enallopagurus spinicarpus (Glassell, 1937), and Solenopagurus diomedeae (Faxon, 1893),...
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Citations
... The genus Pagurus Fabricius, 1775 has been considered as the polyphyletic group in the family Paguridea Latreille, 1802(McLaughlin et al., 2007Mantelatto et al., 2009;Olguin & Mantelatto, 2013) and consists of 177 species worldwide (McLaughlin et al., 2010;Ayón-Parente & Hendrickx, 2012;Komai et al., 2013Komai et al., , 2015Komai & Rahayu, 2014;Muñoz et al., 2014;Lima & Lemaitre, 2016). In Korea, the following 28 species of Pagurus have been reported: P. angustus (Stimpson, 1858), P. brachiomastus (Thallwitz, 1892), P. conformis De Haan, 1849, P. constans (Stimpson, 1858), P. decimbranchiae Komai & Osawa, 2001, P. exiguus (Melin, 1939, P. filholi (de Man, 1887), P. gracilipes (Stimpson, 1858), P. imaii (Yokoya, 1939), P. japonicus (Stimpson, 1858), P. lanuginosus De Haan, 1849, P. maculosus Komai & Imafuku, 1996, P. middendorffi Brandt, 1851, P. minutus Hess, 1865, P. nigrivittatus Komai, 2003 Komai, 1996, P. nipponensis (Yokoya, 1933, P. ochotensis Brandt, 1851, P. parvispina Komai, 1997, P. pectinatus (Stimpson, 1858), P. proximus Komai, 2000, P. rathbuni (Benedict, 1892, P. rubrior Komai, 2003, P. similis (Ortmann, 1892, P. simulans Komai, 2000, P. spina Komai, 1994, P. trigonocheirus (Stimpson, 1858), and P. undosus (Benedict, 1892) (Kamita, 1954(Kamita, , 1955Kim, 1963Kim, , 1964Kim, , 1970Kim, , 1973Oh, 1983Oh, , 2001Kim & Kim, 1997, 2014Kim et al., 2004;Hong et al., 2006a, b;Kim & Son, 2006;Jung & Kim, 2014). ...
Two pagurid species, Pagurus quinquelineatus Komai, 2003 and Pagurus rectidactylus Komai, Saito & Myorin, 2015, are reported from South Korea. Pagurus nigrivittatus is most similar to these two species among the congeneric species known from South Korea. The additional morphological differences between P. quinquelineatus and P. rectidactylus are provided briefly. The most distinct feature of the South Korean P. rectidactylus compared to the original description is that an associated hydrozoan, Hydrissa sodalis (Stimpson, 1858) instead of Bouillonactinia misakiensis (Iwasa, 1934) is responsible for the carcinoecia. The association of H. sodalis with other hermit crabs in South Korea was investigated.
... More than 170 species from around the world are currently assigned to the genus Pagurus Fabricius, 1775 (Lemaitre and Cruz Castaño 2004; Mantelatto et al. 2009; McLaughlin 2003; McLaughlin et al. 2010). This genus is complex because there is high morphological variability and similarity among some species, and has it been divided in groups (e.g., Lemaitre & Cruz Castaño 2004, for eastern Pacific species; Ingle 1985, for European species) with difficulty (Ayón-Parente & Hendrickx 2012). This difficulty has lead to taxonomic problems, although molecular techniques have been recently used to elucidate some species (Mantelatto et al. 2009; Da Silva et al. 2011). ...
Study of hermit crabs from Alboran Sea has allowed recognition of two different morphological forms under what had been understood as Pagurus forbesii. Based on morphological observations with various species of Pagurus, and molecular studies, a new species is described as P. pseudosculptimanus. An overview of species of Pagurus from the eastern Atlantic and Mediterranean Sea is provided.
Studies of the bycatch associated to the shrimp trawling fishery in the Pacific coast of Costa Rica do not assess small organisms (< 10 cm TL) and non-dominant species (< 0.1% of total catch). There is a void in assessing the maintenance of the ecology and ecosystem on which the fishery depends. Furthermore, the Constitutional Court of Costa Rica prohibited the renewal of existing and the issuing of new shrimp bottom-trawl licenses, indicating the necessity of more scientific information on the impacts of this fishery. We present the results of a 23-month study of the shrimp bottom-trawl fishery performed between 50 and 350 m deep in the Pacific coast of Costa Rica. A total of 109 hermit crabs were collected (six species and two families). Paguristes cf. holmesi was the most common species. Zone II presented the highest species richness and abundance. Most specimens (81.8 %) were caught in shallower waters (50-149 m). More than 45% of the trawls presented hermit crabs. It is imperative to further assess the trawling effects on non-commercial benthic fauna and changes on predator-prey relationships before issuing new shrimp licenses
A redescription of Pagurus albus (Benedict, 1892) is presented together with a description of a new species of hermit crab, Pagurus pseudoalbus sp. n., from the Pacific coast of Costa Rica. Pagurus pseudoalbus sp. n. differs from P. albus and P. perlatus by the length of antennal acicles, which do not exceed the distal margin of the 4th antennal segment, whereas in the latter two species, the antennal acicles exceed the 4th antennal segment; the antennular peduncle is proportionally longer than the ocular peduncle in the new species compared to P. perlatus, but shorter than in P. albus; the palm of the right cheliped in P. pseudoalbus sp. n. is 1.3 times as long as broad, while in P. albus and P. perlatus it is 1.0 and 1.4 times as long as broad, respectively. Including the new species, the genus Pagurus in the Eastern Tropical Pacific currently includes 16 species.
Present study reports the shell utilization in relation to the body size of two hermit crab species that live in the same habitat and share the similar gastropod shell resources. The study was conducted at a rocky-muddy intertidal coast of western India where the gastropod shell resource for the hermit crabs is scanty. The hermit crabs Clibanarius infraspinatus and Diogenes avarus were collected and assigned to one of the three sized classes based on total body length of the hermit crab. Belt transect method was followed on monthly basis from January 2013 to December 2013. The parameters measured were: species of gastropod shell in which hermit crab resided, shell mass-length-width, shell aperture length and width, hermit crab species, mass and length of hermit crab, length of cephalic region, length of abdomen. Results revealed that C. infraspinatus and D. avarus were found inhabiting in the shells of 9 and 19 gastropod species respectively. Results revealed that 78% of C. infraspinatus selected the shells of Calliostoma tranquebarica followed by 9% Trochus radiatus and 1% Cerithium scabridum while 12% C. infraspinatus was also found in other shell species. 32% of D. avarus selected the C. scabridum shell followed by 26 % Cerithium rubes, 14% Cerithium morus, 11% C. tranquebarica, 5% T. radiatus while 12% D. avarus was also found in other shells. The exhibited shell utilization clearly indicated that larger animal size is a disadvantage for the sustainability of the population due to lack of big sized gastropod shells in the studied muddy shore. Demand for the large gastropod shells lead to both intra and interspecific competition. This study provides important ecological information supported by statistical validation on hermit crab shell utilization of the studied muddy intertidal zone.
The first larval stage of Enallopaguropsis guatemoci is described in detail and illustrated. The larva is compared with larvae known for other genera of Paguridae except Pagurus. A synthesis of all characters provided herein indicates that first larvae of E. guatemoci can be separated from all known pagurid larvae (except Pagurus) by the combination of the following characters: carapace with long dorsal carina, posterolateral spines absent; abdominal somites 3–5 with pair of moderately long spines; telson narrowly triangular, not forked; spine at antennal protopod as long as endopod.
