A new species and a new record of Sphaeromopsis Holdich and Jones, 1973 from Pakistan waters (Isopoda, Sphaeromatidae)

Sphaeromopsis minutus, sp. nov., the sixth species of Splitteromopsis Holdich and Jones is described and figured in detail. The genus Sphaeromopsis and species S. serriguberna Holdich and Harrison, 1981 is recorded for the first time from northern Arabian Sea, Karachi (Pakistan).