STNGNATHUS.— DOETICHTHTS. 55 



2. Syngnathus auliscus, Swain. 



Siphostomus auliscus, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 7&7. 



Body-rings 15 + 37-3S. Dorsal raj^a 29-30. Origin of dorsal on the ring containing the vent or the one 

 behind it. 



Ilah. Pacific Coast from California to Panama. 



This species has been recorded by Gilbert and Starks (Mem. Calif. Ac. Sci. iv. 1904, 

 p. 57) from the Rio Grande, at Miraflores, near Panama. 



3. Syngnatlms starksi, Jord. & Culv. 



Siphostoma starksi, Jord. & Everm. Bull. "U.S. Nat. Mus. xlvii. 1896, p. 771. 

 Bodj'-rings 14 + 37-38. Dorsal rays 38. 

 Ilah. Mexico, Rio Presidio in Sinaloa. 



2. DORYICHTHYS, Kaup. 

 Dorykhihys, Glintli. Cat. Fish. viii. p. 179 (1870). 



Doryrhamphus, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 773. 

 Pectoral fins present ; caudal fin present ; males with an egg-pouch under the abdomen. 



Ilal), Tropical seas. 



Of three American species, two have been recorded from fresh waters. 



1. Doryichtliys lineatus, Kaup. 



Doryichtfcys lineatus, Giinth. Cat. Fish. viii. p. 183 (1870). 



Doryrhamphus lineatus, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 773. 



Siphostoma brevicaudum, Meek, Pbl. Columbiau Mus. Zool. v. 1904, p. 163, fig. 51. 



Body-rings 19-22 + 23-27. Dorsal rays 42-44, the fin originating in advance of the vent. Snout 11 as long 

 as the rest of head. 



Ilah. Tropical Atlantic. 



Recorded by Meek from Boca del Rio in Vera Cruz, Mexico. 



2. Doryichthys bracliyurus, Bleek. 



Duryichthys brachyurus, Giinth. Cat. Fisli. viii. p. 184 (1870). 



Bodj'-rings 21-23 + 19-24. Dorsal raj-s 36-42, the fin originating above the vent. Snout 14-lA as long as 

 rest of head. 



Hab. Tropical Indo-Pacific. 



Specimens from Tehuantepec in the British Museum, which I have compared with 

 the type of the species from the East-Indian Archipelago. 



