Vulcanocalliacinae

Dworschak, Peter C. & Cunha, Marina R., 2007, A new subfamily, Vulcanocalliacinae n. subfam., for Vulcanocalliax arutyunovi n. gen., n. sp. from a mud volcano in the Gulf of Cádiz (Crustacea, Decapoda, Callianassidae), Zootaxa 1460, pp. 35-46 : 37

Vulcanocalliacinae n.subfam.

Diagnosis: Carapace without dorsal oval, without median carina, without transverse cardiac sulci. Mxp3 ischium-merus 2.5 times as long as broad, dactylus broadened. Plp3–5 biramous, larger than Plp1–2. Epipods present on Mxp3–P4.

Type genus: Vulcanocalliax n.gen., by monotypy and present designation.

Remarks: According to Sakai (2005), the family Callianassidae Dana, 1852 includes eight subfamilies, the Callianassinae Dana, 1852 , Callichirinae Manning & Felder, 1991, Eucalliacinae Manning & Felder, 1991, Anacalliacinae Manning & Felder, 1991, Calliapaguropinae Sakai, 1999 , Lipkecallianassinae Sakai, 2005 , Bathycalliacinae Sakai & Türkay, 1999 and Paracalliacinae Sakai, 2005 . Vulcanocalliacinae n.subfam. shares with Bathycalliacinae Sakai & Türkay, 1999 the presence of epipods on Mxp3–P4, but differs from the latter by the absence of cardiac sulci and the absence of a dorsomedian carina. Both subfamilies show a cardiac prominence which is a common character of the family Ctenochelidae (sensu Manning & Felder, 1991). In Bathycalliacinae this cardiac prominence is a distinct swelling close to the posterior border of the carapace (see Sakai & Türkay, 1999: figs 1, 2a) and similar to that in the Ctenochelidae [e.g. in Ctenocheles maorianus Powell, 1949 (NHMW 6733); Ctenocheles balssi Kishinouye, 1926 (see Sakai, 1999a: fig. 1a); see also Manning & Felder (1991: figs 2 and 7)]. In Vulcanocalliacinae n.subfam., the swelling is less pronounced and situated more anteriorly between cervical grove and posterior border of the carapace than in the Ctenochelidae , similar to the weak cardiac prominence found in some members of the Eucalliacinae (e.g. Calliax doerjesti Sakai, 1999 b: fig. 28).