Xenisthmus chapmani (Schultz 1966)

Description: Origin of anal fin is under base of second soft dorsal ray; both jaws with 1-2 rows of conical teeth; probably no teeth on vomer or palatines; maxillary oblique in position, vertical line through rear edge passing slightly in front of pupil; eye large at lateral in position, membraneouslyattached to skin around eye; 2 pairs of nasal openings, 1 dorsally at front of eye, the other next to upper lip; premaxillary not protractile; head naked and predorsal area probably naked (Ref. 609).

Dorsal spines (total): 5; Dorsal soft rays (total): 15; Analspines: 1; Analsoft rays: 13

Xenisthmus chapmani is a species of goby from the sleeper goby family Eleotridae which is known from a single specimen collected in Espiritu Santo Harbour, Vanuatu. Its specific name honours Dr. Wilbert M. Chapman the collector of the holotype.