2. SYN(iNATHU8. I'il 



postorbital part of the head is more than that of two body-rings 

 (measured laterally). No postorbital ridge. Operculum with scarcely 

 a trace of a ridge. Nuchal plates with a more or less distinct 

 median ridge. Shields without spines. Lateral line and U2:)per 

 caudal edge not continuous. T;iil nearly twice as long as the trunk 

 (without head). Dorsal fin commencing sliyhtly in advance of or 

 above the veut. Caudal fin well developed. 

 California. 



a. Adult. California. Presented by Mr. F. Gruber. (D. 35. 



llings 18 + 41.) 

 h. Adult. Vancouver Island. Collected by Lieut.-Col. Hawkins. 



(D. 39. Rings 18 + 41.) 

 c, d. Adult : dried. Esquimalt Harbour. Collected by the Boundary 



Commission. (D. 35.) 



7. Syngnathus acicularis. 



Syngnathus acicularis, Jenyns, J'oy. Beagle, Fish. p. 147, pi, 27. 



fig. 3. 

 arundinaceus, Gira7-d, U. S. Pac. H.M, Exped. Fish. p. 346 ; 



Gill, Proc. Ac. Nat. Sc. Philad. 1862, p. 283. 



Most closely aUied to S. acits, schlegelii, and griseo-lineatm. 

 D. 3G. Osseous rings 18 + 42. 



Anterior part of the trunk 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, which is half as long as the snout. No 

 postorbital ridge. Operculum with scarcely a trace of a ridge. 

 Nuchal plates with a slight median ridge. Shields without spines. 

 Lateral line and upper caudal edge not continuous. Tail twice as 

 long as the trunk. Dorsal fin commencing somewhat in advance of 

 the veut. Caudal fin well developed. 



Western coasts of America. 

 a. Adult female. Coquimbo Bay. Collected by Dr. Cunningham. 



8. Syngnathus fistulatus. 



Peters, Mmatsber. Ak. Wiss. Berl. 18G8, p. 456. 

 D. 37. Osseous rings 20 + 41. 



Snout twice as long as the distance of the posterior end of the 

 opcrcle from the orbit, and but little higher than broad. Supraor- 

 bital ridges continued on the crown and convergent. Opcrcle with a 

 keel oa its anterior half, and radiating stria;. The entire head 

 leathery, rough. Shields without spines. Lateral line jja.^sing into 

 the upper caudal edge. Dorsal Jin coinmencing on the anal ring, and 

 ofcupging seven caudal rings. Tail twice as long as the truixk (with- 

 out head). Pouch on twenty-one caudal rings. {Ptrs.) 



Puerto Cabello. 



VOL. VIII. M 



