Eucalliax Manning and Felder, 1991
publication ID |
https://doi.org/ 10.24199/j.mmv.2019.78.05 |
publication LSID |
urn:lsid:zoobank.org:pub:263C1363-0ADA-4972-9224-AC690A1FD238 |
persistent identifier |
https://treatment.plazi.org/id/038BBA5B-F268-080B-FF3D-B162A95CFCBF |
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Felipe |
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Eucalliax Manning and Felder, 1991 |
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Eucalliax Manning and Felder, 1991
Eucalliax Manning and Felder, 1991: 781–783 (partim).— Ngoc-Ho, 2003: 489–490 (partim).— Sakai, 2011: 502–503 (partim).— Hyžný and Hudáčková, 2012: 12–14 View Cited Treatment (partim).— Sakai, 2017a: 1122 (partim).— Sakai, 2018: 742.
Type species. Callianassa quadracuta Biffar, 1970 , by original designation.
Diagnosis. Anterior dorsal carapace with median ridge posterior to rostrum and submedian pair of oblique ridges. Maxilliped 3 ischium and merus less than twice as long as wide at their articulation. Male major cheliped with palm about twice as long as carpus, 1.5 times as long as wide; minor chela slightly smaller, with elongate fingers; major cheliped carpus upper margin with 2 distal sharp spines in both sexes. Male pleopod 1 article 1 with distal long setae; article 2 blade like, with bifid apex, sometimes obscure; without appendix interna. Male pleopod 2 appendix interna minute; appendix masculina
4 times as long as wide, attached near apex of endopod reaching, or exceeding tip of endopod. Uropodal endopod triangular, anterior margin strongly convex, posterior margin straight. Telson convex-sided, widest near midpoint, posterior margin slightly excavate; with transverse crest.
Remarks. The most obvious characters distinguishing the only species, Eucalliax quadracuta , from other eucalliacids is the triangular uropodal endopod and the male pleopod 2 with its appendix masculina well exceeding the endopod.Re-examination by us ( PCD) showed the presence of a minute appendix interna (fig. 19w); Sakai’s figure (1999a; fig. 30c) is misleading.
Eucalliax was differentiated initially from Calliax simply “in having the chelipeds equal and similar”, the two genera being placed in the same new subfamily ( Manning and Felder, 1991). The genus was treated as a synonym of Calliax by Sakai (1999a, 2005b) without justification but revived later ( Sakai, 2011). Sakai (2017a) differentiated Eucalliax from Eucalliaxiopsis Sakai, 2011 View in CoL on differences in male pleopods 1 and 2 but not from other genera.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Eucalliax Manning and Felder, 1991
Poore, Gary C. B., Dworschak, Peter C., Robles, Rafael, Mantelatto, Fernando L. & Felder, Darryl L. 2019 |
Eucalliax
Sakai, K. 2018: 742 |
Sakai, K. 2017: 1122 |
Hyzny, M. & Hudackova, N. 2012: 12 |
Sakai, K. 2011: 502 |
Ngoc-Ho, N. 2003: 489 |
Manning, R. B. & Felder, D. L. 1991: 783 |