Aristaeomorpha Wood-Mason, 1891

Tavares, Carolina R. & Serejo, Cristiana S., 2007, Taxonomy of Aristeidae (Dendrobranchiata: Penaeoidea) from the central coast of Brazil, collected by the Revizee program, between 19 º and 22 ºS, Zootaxa 1585, pp. 1-44 : 4

Genus Aristaeomorpha Wood-Mason, 1891

Integument pubescent, with small scattered photophores on ventrum of cephalotorax and abdomen, on antennal scale, on lateral ramus of uropod, and on most other appendages. Rostrum elongate in females and juvenile males, reaching well beyond scaphocerite; short in adult males, not reaching third of antennular peduncle, bearing 3–7 dorsal spines along its entire length, followed by 2 postrostral spines. Carapace, orbital and postantennal spines absent; hepatic spine well developed; postrostral carina reaching about two-thirds of carapace; cervical sulcus faint dorsally; branchiostegal carina sharply anteriorly; hepatic carina well marked, accompanying shallow but well defined sulcus; branchiocardiac carina strong, almost reaching posterior margin of carapace. Eye with cornea well developed, optic calathus bearing minute mesial tubercle mesiodistally. Dorsal antennular flagellum short, flattened for most of its length; ventral flagellum elongate, slender, terete, not modified in male. Scaphocerite with lateral marginal ridge ending in short spine at about three-fourths length of lamella.

Pereopods lacking exopods; merus and ischium unarmed; fourth and fifth pereopods slender. Thelycum open, with shieldlike median protuberance on sternite XII directed anteroventrally; sternite XIII bearing short rounded median prominence.

Petasma with lateral lobule roughly trapezoidal, conspicuously surpassing median lobe; ventral costa as long as lateral lobule, attached along almost entire length, with tip turning slightly mesially. First and second abdominal somites dorsally rounded, third to sixth somites dorsally carinate, carina of third somite extending only along posterior two-thirds, almost indistinct, four posterior somites ending in sharp spine. Telson bearing 4 pairs of movable lateral spines in posterior half (modified from Pérez Farfante & Kensley, 1997).