Montanaxius, Dworschak, 2016

Dworschak, Peter C., 2016, A new genus and species of axiid shrimp (Crustacea, Decapoda) from a southwestern Indian Ocean seamount, European Journal of Taxonomy 229, pp. 1-11 : 2-3

Montanaxius gen. nov.

urn:lsid:zoobank.org:act:DF6AE674-18CA-46C1-B139-292865692B6B

Type species

Montanaxius mediumquod gen. et sp. nov. by monotypy and present designation.

Diagnosis

Gonochoristic. Carapace smooth; cervical groove visible laterally almost to anterolateral margin. Rostrum triangular, broad, laterally denticulate, longer than eyestalks, depressed below level of carapace, continuous with definite lateral carinae; supraocular spines not differentiated from other spines; lateral carina short, unarmed; submedian carina absent; median carina a spinose ridge; postcervical carina absent. Pleomere 1 pleuron triangular, ventrally rounded; pleuron 2 broad, anteriorly and posteriorly rounded; pleura 3–5 posteriorly rounded. Eyestalk cylindrical, articulating; cornea pigmented. Antennal scaphocerite well developed. Mxp3 exopod not clearly bent at base of flagellum. Pleurobranchs present above P2–4; podobranchs and arthrobranchs well developed; epipods present on Mxp2 to P4. P1 slightly asymmetrical; merus with spines on lower border; propodus flattened; carpus-dactylus upper and lower margins smooth. P3–5 propodi with transverse rows of robust setae; dactyli tapering, with longitudinal rows of robust setae. Plp1 of male present. Plp2 of male with appendix masculina. Plp3–5 with appendix interna. Uropodal exopod with transverse suture. Telson with lateral spines and posterolateral robust setae; apex truncate-rounded, with median spine.

Etymology

The name is a combination of the stem of montanus (Latin for ‘mountain’, referring to the seamount where it was found) combined with Axius . The gender is masculine, as in Axius .

Remarks

See discussion below.