Pagurus leptonyx Forest & Saint Laurent, 1968

Nucci, Paulo Ricardo & Melo, Gustavo Augusto Schmidt De, 2007, Hermit crabs from Brazil. Family Paguridae (Crustacea: Decapoda: Paguroidea): Genus Pagurus, Zootaxa 1406, pp. 47-59 : 54-55

publication ID

https://doi.org/ 10.5281/zenodo.175515

publication LSID

lsid:zoobank.org:pub:EBF01CD6-3875-43ED-B91F-72125DEDBF13

DOI

https://doi.org/10.5281/zenodo.6250401

persistent identifier

https://treatment.plazi.org/id/039287BC-FF9D-FFFA-FF66-FA320330757D

treatment provided by

Plazi

scientific name

Pagurus leptonyx Forest & Saint Laurent, 1968
status

 

Pagurus leptonyx Forest & Saint Laurent, 1968 View in CoL

(Figs. 1E, 2E, 3E, 4E)

Pagurus leptonyx Forest & Saint Laurent, 1968: 128 View in CoL , figs 81, 85, 86, 89, 90, 100.— Coelho & Ramos, 1972: 164.— Scelzo & Boschi, 1973: 214.— McLaughlin, 1974: 41; 1975: 372.— Lemaitre et al., 1982: 678, figs 1c, d.— Coelho & Ramos-Porto, 1986: 41.— Rieger, 1998: 414.— Melo, 1999: 130, fig. 74.

Pagurus leptonix .— Fausto-Filho, 1970a: 58; 1970b: 71.

Diagnosis. Shield as broad as long. Rostrum obtuse, triangular, smaller than lateral projections. Ocular peduncles elongate and slender, corneae slightly dilated. Ocular acicles each with 3 or 4 submarginal spines and sometimes 1 accessory marginal spinule. Antennular and antennal peduncles overreaching corneae; flagellum of antennal peduncle with long setae inserted in pairs. Right cheliped flattened on mesial face, palm longer than carpus, length of fingers half that of palm; dorsomesial margin of carpus with single or double row of spines or spinulose tubercles. Left cheliped much smaller than right; carpus elongate, with row of strong teeth on dorsomesial region. Second and third pereopods with dactyls curved along entire length; ventral margins each with row of corneous spinules; propodi unarmed; carpi each with dorsodistal spine. Telson with posterior margins strongly oblique, armed with large and small spines; lateral margins with corneous spinules.

Distribution. Western Atlantic — Brazil (from Ceará to Santa Catarina).

Habitat. On sandy and muddy substrates, from shallow waters to 20 metres.

Material examined. Brazil: Alagoas — Maceió, st. 31, 2 females: 1.5, 1.2 mm, 1 male: 1.3 mm ( MZUSP –6472); ES-1, 2 females: 1.9, 1.0 mm ( MZUSP –6829); S-3, 1 male: 2.2 mm ( MZUSP –6831); 1 female: 1.6 mm ( MZUSP –6827); EO-21, 1 male: 1.9 mm ( MZUSP –6835). Sergipe – Aracaju, 2 males: 2.1, 2.3 mm ( MZUSP –9603). São Paulo – Proj. Monitoramento, st. 14, 5 males: 1.6, 2.2, 1.7, 1.3, 1.6 mm, 2 females: 1.3, 1.2 mm ( MZUSP –13347).

Remarks. Pagurus leptonyx is very close to P. criniticornis and P. trichocerus . One can quickly distinguish P. leptonyx from P. criniticornis by means of the ocular acicles, which in P. criniticornis have only one spine. Pagurus trichocerus , which occurs in Uruguay, can be distinguished from P. l e p t o n y x basically by the shape and ornamentation of the right cheliped and by the armature of the dactyls of the ambulatory legs.

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Paguridae

Genus

Pagurus

Loc

Pagurus leptonyx Forest & Saint Laurent, 1968

Nucci, Paulo Ricardo & Melo, Gustavo Augusto Schmidt De 2007
2007
Loc

Pagurus leptonix

Fausto-Filho 1970: 58
1970
Loc

Pagurus leptonyx

Melo 1999: 130
Rieger 1998: 414
Coelho 1986: 41
Lemaitre 1982: 678
McLaughlin 1974: 41
Scelzo 1973: 214
Coelho 1972: 164
Forest 1968: 128
1968
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