292 PERCY SLADEN TRUST EXPEDITION. 
3. Haplochilus playfatri, Gthy. 
Mahé: Cascade River; Under Moine; Chateau Margot, 1000 f. Praslin: Stream 
above Céte d’Or; Midlands, 1000 f. 
The habitat of this species is restricted to the brackish and fresh waters of the 
Seychelles. 
4, Eleotris ophiocephalus, C. & V. 
Praslin: Stream above Cote d’Or. Silhouette. 
Inhabits brackish and fresh waters of Madagascar, the Comoros, and the Seychelles. 
Ts also known from various islands in the eastern parts of the Indian Ocean. 
This little series only further exhibits the well-known poverty of the freshwater 
fish-fauna of the islands in the Indian Ocean. The species listed above belong to 
widely-distributed genera which have representatives in the sea or at Jeast in brackish 
water. 
In addition to the species obtained in fresh water by Mr. Stanley Gardiner, a 
Cyprinodont, Fundulus melanospilus, Pfeffer, also occurring on the Zanzibar coast, and 
four widely-distributed brackish-water Perciforms, Kuhlia teniura, C. & V., Apogon 
hyalosoma, Blkr., Ambassis urotenia, Blkr., and EHleotris fusca, Bl. Schn., are reported 
to enter fresh water in the Seychelles. 
BATRACHIANS. 
APODA. 
1. Hypogeophis rostratus, Cuv. 
Mahé: Cascade Estate, 1000 f.; Chateau Margot, 1400 f. Praslin. Silhouette. 
2. Hypogeophis alternans, Stejn. 
Mahé: Cascade Estate, 1000-2000 f. Praslin. Silhouette. 
Both these species are confined to the Seychelles; a third species (H. guenther, 
Bigr.) is from Zanzibar. 
PRASLINIA, gen. nov. 
Squamosal narrowly separated from parietal. Teeth small and very numerous, in 
two series in the lower jaw. Eye distinct. Tentacle globular, in front of and close 
to the eye. Cycloid scales imbedded in the skin. No tail. 
The skull is more flattened and the teeth more numerous than in any other known 
genus of Ceeciliids. Among the genera with scales, with two series of mandibular teeth, 
and with the squamosals not suturally united with the parietals, Praslinia is well 
characterized by its rounded tentacle surrounded by a complete ring-like groove and 
by the absence of even a rudimentary tail. 
