Poti, Rodrigues & Manning, 1992

Poore, Gary C. B., Dworschak, Peter C., Robles, Rafael, Mantelatto, Fernando L. & Felder, Darryl L., 2019, A new classification of Callianassidae and related families (Crustacea: Decapoda: Axiidea) derived from a molecular phylogeny with morphological support, Memoirs of Museum Victoria (Mem. Mus. Vic.) 78, pp. 73-146 : 97

Poti Rodrigues and Manning, 1992

Poti Rodrigues and Manning, 1992a: 9–10.

Callianassa .— Sakai, 1999a: 11–13 (partim).

Cheramus .— Sakai, 2011: 363–365 (partim).

Type species. Poti gaucho Rodrigues and Manning , 1992, by original designation and monotypy .

Diagnosis. Rostrum acute, anteriorly directed, as long as eyestalks. Pleomere 1 tergite fused, divided into 2 sections by transverse step. Cornea with scattered reduced pigmentation. Antennular peduncle articles 2 and 3 with single lateral row of 6–10 well-spaced long setae along lower margin. Maxilliped 3 merus almost rectangular, distally truncate with squarish angle between distal and lower margins, longer than wide at ischium-merus suture; crista dentata a prominent toothed ridge extending beyond proximal margin of merus. Pereopod 3 propodus oval, lower margin slightly convex, leading to narrow sharply rounded proximal lobe. Male pleopod 2 present. Uropodal endopod ovoid, usually longer than wide, anterior margin straight or slightly convex, posterodistal margin evenly convex. Uropodal exopod about 1.5–1.8 times as long as wide, distal margin clearly differentiated from anterior margin, anterodistal corner right-angled, posterodistal margin with row of 6–8 long blade-like setae proximal to long setae on distal margin. Telson anterolateral lobe obsolete, undefined.

Remarks. Poti was said to differ from all other callianassid genera in having an incomplete linea thalassinica ( Rodrigues and Manning, 1992a), a condition we were unable to confirm. Otherwise, the maxilliped 3 and minor cheliped of the only species resembles those of species of Cheramoides . The uropodal exopod is broad, while it is exceptionally long and narrow in Cheramoides .

Poti was synonymised with Callianassa by Sakai (1999a), along with seven other genera, and with a redefined Cheramus by Sakai (2011) who took a broad view of both genera.