16() STNGNATHID^. 



4. Syngnathus loiiisianae. 



Closely allied to S. acus, tichhyelii, f/riseo-Iuicatiis, &c., but with the 

 dorsal fin more advanced. 



D. 36. Osseous rings 19 + 36. 



Body not deeper than broad. The length of the snout equals the 

 distance of the front margin of the eye from the extremity of the 

 pectoral fin. The length of the postorbital part of the head is a little 

 more than that of two body-rings (measured laterally). Supraorbital 

 edge raised, and continued into a distinct ridge on the side of the 

 crown of the head. Nuchal plates with a distinct median ridge. 

 Operculum finely granulated, with a ridge at its base. Shields with- 

 out spines. Lateral line and upper caudal edge not continuous. 

 Tail twice as long as the trunk. Dorsal Jin occujji/ing three hody- 

 and jive caudal rings. Caudal fin much longer than pectoral, and as 

 long as the postorbital part of the head. 



New Orleans. 



a. Female, 85 inches long. Purchased of Mr. Cuming. 



5. Syngnathus schlegelii. 



Syngnathus tenuirostris, Schley. Faun. Japan. Poiss. p. 273, pi, 120. 



fig. 5. 

 schlegelii, Kattp, Lophohr. p. 46. 



D. 40 (35, Kaup). Osseous rings 19-f 44-4(i. 



Anterwr part of the hodg not deeper than the head. The length of 

 the snout equals the distance of the front margin of the orbit from 

 the root of the pectoral fin. Tlie length of the postorbital part of 

 the head is more than that of two body-rings (measured laterally). 

 No postorbital ridge ; anterior part of the operculum with a faint 

 ridge. Shields without spines. Lateral line and upper caudal edge 

 not continuous. Tail more than thrice as long as the trunk (without 

 head). Caudal pouch half as long as the tail. Dorsal fin com- 

 mencing slightly in advance of the vent. Caudal fin well deve- 

 loped. 



Japan ; China. 



a. Adult male. China. Presented by Yico-Admiral Sir E. Belcher. 



6. Syngnathus griseolineatus. 



SjTignathus griseolineatus, Ai/rcs, I'roc. Calif. Ac. A^at. Sc. 1854, 

 p. 14 ; Gill, Proc. Ac. Nat. Sc. Philad. 1862; p. 284. 



califomiensis, Girard, Proc. Ac. Nat. Sc. Philad. 1856, p. 137 ; 



and U. S. and Pac. R.R. Rrp. Fish. p. 344 (not Sforer). 



leptoiliynchus, Girard, I. c. 1°, 1854, p. 156 ; and I. c. 2°, p. 345 ; 



Gill, I. c. 



abboti, Girard, I. c. 2°, p. 346. 



D. 35-39. Osseous rings 18-f-41. 



The length of the snout equals the distance of the front margin of 

 the orbit from the extremity of the pector;il fin. The length of the 



