Eupronoe minuta Claus, 1879

Gasca, Rebeca & Hendrickx, Michel E., 2021, Pelagic amphipods (Crustacea: Amphipoda: Hyperiidea) in western Mexico. 2 Family Eupronoidae, Zootaxa 4948 (3), pp. 419-430: 422

publication ID

https://doi.org/10.11646/zootaxa.4948.3.6

publication LSID

lsid:zoobank.org:pub:2B5E0C82-3B2F-4C90-8604-73E53F7C590B

DOI

http://doi.org/10.5281/zenodo.4669929

persistent identifier

http://treatment.plazi.org/id/03A087AC-E66C-3966-04CA-DED1FBFCE7FD

treatment provided by

Plazi

scientific name

Eupronoe minuta Claus, 1879
status

 

Eupronoe minuta Claus, 1879  

Eupronoe minuta Claus, 1879: 28   ; Siegel-Causey, 1982: 275; Vinogradov et al., 1996: 448 (key), 449, fig. 195; Gasca, 2009 b: 87 (table 1); Gasca et al., 2010: 933; 2012: 126 ( Table 1 View TABLE 1 ); Lavaniegos & Hereu, 2009: 139–147 (passim), 142 (table 1), 152 (Appendix 1); Lavaniegos, 2014: 1–8 (passim), 4 (table 1), 10 (table 4); 2017: 13–24 (passim), 18 (table 2).

Material examined. 5M and 21F from 8 stations. ( Fig.3 View FIGURES 3–4. 3 ). TALUD I. St. 5 (23°16’N, 107°31’W), December 12, 1989 GoogleMaps   , 1M, BO, surface to ca. 200 m (ICML-EMU-12768-A). TALUD III. St. 3B (22°36’36”N, 106°35’54”W), August 17, 1991 GoogleMaps   , 1M, 1F, I-K from surface to 275 m ( TD ND) (ICML-EMU-12768-B); St. 10B (23°43’24”N, 107°39’06”W), August 18, 1991 GoogleMaps   , 2M, 6F, I-K from surface to 630 m ( TD ND) (ECO-CH-Z-10369); St. 19B (25°18’24”N, 109°18’36”W), August 20, 1991 GoogleMaps   , 6F, I-K from surface to 600 m ( TD 1890 m) (ICML-EMU-12768- C); St. 25A1 (25°51’00”N, 109°57’00”W), August 21, 1991 GoogleMaps   , 3 F, I-K from surface to 200 m ( TD 2000 m) (ICML- EMU-12768-D)   . TALUD IV. St. 7 (22°00’22”N, 106°49’18”W), August 23, 2000 GoogleMaps   , 1F, MN from surface to 500 m ( TD 1970 m) (ICML-EMU-12769-A)   . TALUD VI. St. 7 (22°21’39”N, 107°01’42”W), March 14, 2001 GoogleMaps   , 2F, MN from surface to 1305 m ( TD 2100 m) (ICML-EMU-12769-B)   . TALUD VII. St. 29 (25°18’02”N, 109°24’09”W), June 8, 2001 GoogleMaps   , 2F, 1M, MN, 1335 m ( TD 2080 m) (ECO-CH-Z-10370)   .

Distribution. Cosmopolitan. Epipelagic in tropical and temperate areas ( Vinogradov et al. 1996). In the eastern Pacific it is known from the Gulf of California ( Brusca & Hendrickx 2005; Garcia-Madrigal 2007) and has been reported as ‘very common’ along the west coast of the Baja California Peninsula ( Lavaniegos & Hereu 2009; Lavaniegos 2014, 2017); its known distribution stretches south to off Jalisco and Colima ( Gasca et al. 2012).

Remarks. According to Siegel-Causey (1982) and Brusca & Hendrickx (2008 onwards), E. minuta   is widely distributed in the Gulf of California, where it occurs from 29°57’N (off Punta Tepoca) in the northeastern Gulf to 22°21’39”N in the southwestern Gulf (TALUD VI. St. 7 record). Our material, however, did not include specimens from the northern Gulf and all samples were taken south of 25°51’00”N ( Fig. 2 View FIGURES 1–2. 1 ). This species is the smallest in the genus, with adult reaching 6‒8 mm of total length. The specimens examined herein feature especially long dactyls on pereopods III and IV. Indeed, in some specimens, particularly in some females, dactyls are up to 85% as long as propodus. This is much longer that what has been reported in the original description ( Claus 1879) and in subsequent contributions by Vinogradov et al. (1986) and Zeidler (1998) (i.e., less than 50%). However, among our specimens some fit well with this feature (i.e., dactyls less that 50% of propodus length) and this could therefore represent a variation within E. minuta   adult population or an ontogenic variation.

MN

Museu Nacional, Universidade Federal do Rio de Janeiro

VI

Mykotektet, National Veterinary Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Pronoidae

Genus

Eupronoe

Loc

Eupronoe minuta Claus, 1879

Gasca, Rebeca & Hendrickx, Michel E. 2021
2021
Loc

Eupronoe minuta

Lavaniegos, B. E. 2014: 1
Gasca, R. & Franco-Gordo, C. & Suarez-Morales, E. & Godinez-Dominguez, E. 2012: 126
Gasca, R. & Suarez-Morales, E. & Franco-Gordo, C. 2010: 933
Lavaniegos, B. E. & Hereu, C. 2009: 139
Vinogradov, M. E. & Volkov, A. F. & Semenova, T. N. 1996: 448
Siegel-Causey, D. 1982: 275
Claus, C. 1879: 28
1879