Sinelobinae, Sieg, 1980

Chim, C. K. & Tong, Samantha J. W., 2019, Xenosinelobus balanocolus, a new tanaidid genus and species (Crustacea: Peracarida: Tanaidacea) from barnacles on intertidal rocky shores and seawalls in the Singapore Strait, Zootaxa 4629 (3), pp. 413-427 : 426

Key to genera of the subfamily Sinelobinae

1. Body length longer than 7 mm (mature individuals).Antenna articles-2 and 4 with setal tuft. Left mandible lacinia mobilis with two setae. Maxillule endite with nine distal spiniform setae; palp with 13 setae. Pereopod 1 propodus with ten ventral setae. Pereopods 2–6 carpus with 8–12 spiniform setae. Pleopod basal article with ten outer and three inner setae; exopod with 49 outer setae; endopod with 30 outer and 17 inner setae. …………………….................... Parasinelobus Sieg, 1980

- Body length 4 mm or shorter. Antenna articles-2 and -4 without setal tuft. Left mandible lacinia mobilis without seta or with only one seta. Maxillule endite with seven or eight distal spiniform setae; palp with two or three setae. Pereopod 1 propodus with one or three ventral setae. Pereopods 2–6 carpus with 4–8 spiniform setae. Pleopod basal article with six or less outer and one inner setae; exopod with 20–28 outer setae; endopod with 9–14 outer and 1–3 inner setae......................... 2

2. Antenna article-5 at least 0.6 times as long as article-4. Right mandible lacinia mobilis peg-like. Maxillule palp with two setae. Epignath terminal seta short. Cheliped propodus inner margin near dactylus insertion setae simple if present. Pereopod 1 coxa without spiniform seta; propodus without inner seta; dactylus without seta. Pereopods 2–3 terminal articles straight. Pereopods 2–6 carpus with four or five spiniform setae. Pereopod 4–6 claw without dorsal seta. Dorso-transverse setal row on pleonites incomplete. Pleopod basal article with 4–6 outer setae; endopod with only one inner seta. Uropod with four articles; final article at most 0.9 times as long as preceding article................................................ Sinelobus Sieg, 1980

- Antenna article-5 at least 0.1 times as long as article-4. Right mandible lacinia mobilis tooth-like. Maxillule palp with three setae. Epignath terminal seta long. Cheliped propodus inner margin near dactylus insertion setae plumose. Pereopod 1 coxa with spiniform seta; propodus with inner seta; dactylus with seta. Pereopods 2–3 terminal articles claw-like. Pereopods 2–6 carpus with seven or eight spiniform setae. Pereopod 4–6 claw with dorsal seta. Dorso-transverse setal row on pleonites complete. Pleopod basal article with only one outer seta; endopod with two or three inner setae. Uropod with three articles; final article 1.6 times as long as preceding article...................................................... Xenosinelobus n. gen