Platypontonia hyotis Hipeau-Jacquotte 1971

Platypontonia hyotis Hipeau-Jacquotte, 1971

Platypontonia hyotis Hipeau-Jacquotte, (March) 1971:126, figs. 1–7 [type locality: near Tuléar, southwestern Madagascar; in bivalve Pycnodonta].—Bruce, 1983c:895, figs. 7J [as “Pycnodonta hyotis”]. 10B.C.

Platypontonia pterostreae Suzuki, (July) 1971:5, figs. 3, 4, pl. 3 [type locality: Hatsu-shima, Sagami wan, Honshu, Japan; in bivalve Pterostrea].

DIAGNOSIS.—Rostrum with strong, anteriorly dentate median ventral carina in distal ; maximum postorbital carapace length 5.3 mm.

RANGE.—Madagascar, Japan, and Indonesia, and eastern Australia.

Plesiopontonia Bruce, 1985

Plesiopontonia Bruce, 1985b:248 [type species, by monotypy: Plesiopontonia monodi Bruce, 1985b:250; gender: feminine].

DIAGNOSIS.—Rostrum overreaching anteriorly extended eyes, compressed laterally, armed both dorsally and ventrally, lateral carina not expanded laterally into broad supraocular or postocular eave; carapace subcylindrical, dorsal profile faintly and sinuously convex, none of teeth of dorsal rostral series extending onto gastric region, anterior margin not produced posteroventrally as prominent convex lobe, not deeply concave (notched), without longitudinal branchiostegal suture, with antennal spine, without hepatic spine, orbit not sharply defined; abdomen with pleuron of 5th somite subquadrangular; telson not curving ventrad, posterior margin not incised, median and submedian spines not curving ventrad, dorsolateral spines not robust; antennal scale well developed; mandible without palp; 3rd maxilliped with exopod; 4th thoracic sternite without slender median process; 1st pereopod with carpus entire, not subdivided; 3rd pereopod composed of 7 segments, merus and ischium not fused, dactyl not bearing hoof-shaped protuberance, not clearly biunguiculate; uropod with lateral branch probably bearing 1 movable spine flanked by acute tooth.

RANGE.—Philippines.