Caobangia ceylonica Jones 1974

Caobangia ceylonica

MATERIAL EXAMINED.—Ceylon: [1] Mousakande Group, Gammaduwa [drainage of the Mahaweli River] (07°34′N, 80°42′E), from Ganga abbreviata (Reeve) (USNM-M 574104), coll. H. G. Deignan, 30 May 1944, “3,000 feet [elevation] in rocky pool of mountain torrent” (USNM-W 50631, holotype; USNM-W 50632, paratypes), dry material; [2] Andooloo, Bintenne [drainage of the Walawe River] (06°24′N, 80°48′E), from Paludomus hanelyi Dohrn (MCZ 74983), coll. E. L. Layard, 1864 (USNM-W 50633, paratypes), dry material; from Tanalia aculeata (Gmelin) (USNM-M 103704) [no specific locality given], coll. F. Stoliczka (USNM-W 50634, paratypes), dry material.

DESCRIPTION.—The description is based on setal morphology, since the species is represented only by dried material. Palmate hooks of the first setiger have from 5 to 9 teeth in the arcuate series above the single central fang (Figure 9f, 17a,g,h). The terminal teeth of the series are stouter than the rest, the dorsalmost being longer than the others, but the ventralmost is extremely long (up to 4 times the length of the intermediary teeth). Capillary setae of both the thorax and the abdomen (Figure 17b-e) are similar to those of C. indica. The anterior abdominal region may have up to 5 transverse rows of low avicular hooks, similar to those of all other species (Figure 17f-h). Long-necked hooks from the posterior region of the body were not observed.