FIGURE 4 in Strongly carinate species of Alpheopsis Coutière, 1897 of the tropical Atlantic and eastern Pacific, with redescription of A. trigona (Rathbun, 1901) and description of three new species (Malacostraca: Decapoda: Alpheidae)

FIGURE 4. Alpheopsis trigona (Rathbun, 1901), female holotype (cl 5.5 mm) from off Vieques Island, Puerto Rico (USNM 23785) [a–c]; male (cl 5.4 mm) from Peter Island, US Virgin Islands (USNM 135844); a—carapace, lateral; b—left cheliped, mesial; c—same, dorsolateral; d—carapace and anterior pleon, lateral; e—same, dorsal; f—anterior region of carapace and frontal appendages, lateral; g—same, dorsal; h—right (major) cheliped, mesial; i—same, carpus and chela, lateral; j—left (minor) cheliped, mesial; k—same, lateral; l—second pereiopod, lateral; m—third pereiopod, lateral. Modified from Anker (2001).