58 PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



Small cirri, including some that are pinnate, on keels of head and body and 

 under throat. Median crest of snout may be continuous with occipital crest, or 

 interrupted in interorbital space. 



In the Museum of Comparative Zoology are still 2 specimens, received from 

 Poey in 1868, which fairly represent either nominal species in everything but 

 color, and are quite unlike any other species mentioned by Poey. 



This species may be taken in breeding condition from at least June to August 

 inclusive. About 100 young are carried at once in the brood pouch of the male, 

 where through the greater part of its length they lie in four rows. 



In ground color individuals differ considerably. Some are rather dark brown; 

 in others the head, roughly the area occupied by the brood pouch, and several 

 segments before the caudal are paler and tend distinctly toward olive; snout, 

 throat, and gill covers obliquely banded with white laterally and ventrally. A fine 

 speckling of light spots spreads a faint grayish bloom over the back and sides of 

 the trunk and tail. 



The strongly angulate body and the excessively short snout, which is contained 

 about 3.0 times in the head, help to distinguish this species. Comparing it with 

 Hippichthys albirostris, it apparently attains a smaller size (usual length under 

 100 mm.), and has fewer caudal rings, a shorter snout, keels on head not serrate 

 in adults, and no crossbands on body. 



West Indies to Florida. . W. H. L. 



Syngnathus jonesi Giinther 



Two specimens are mentioned in Dr. Longley's notes, taken on grassy bottom 

 at Bush and Long keys. In the manuscript is a preliminary account of 2 speci- 

 mens, 67 and 80 mm. long, taken at Bush and Long keys, listed as Syngnathus 

 cnnigeriim. Two specimens of the lengths mentioned, questionably identified as 

 S. crinigerum Bean and Dresel, indeed are included in the collection, as well as 

 6 others, ranging in length from 50 to 102 mm. 



The specimens from Tortugas were compared with the 2 type specimens of 

 S. crinigerum in the U. S. National Museum. The types differ in the length and 

 position of the dorsal fin, which has only 16 or 17 rays, and is situated over + 4 

 rings, and the rings in the types are 16 -f- 35 in one and 16 + 36 in the other. 

 These counts agree essentially with the original description of S. crinigerum, and 

 not with the description of S. jonesi, nor with the counts listed subsequently, 

 based on Tortugas specimens. In view of these facts I refer the Tortugas speci- 

 mens to S. jonesi. 



The median lateral keel is bent downward on the last two body rings, and is 

 continuous with the inferior lateral keel of the tail. Therein S. jonesi and S. 

 crinigerum agree, and differ from other local species. Duncker (Hamburg, wis- 

 sensch. Anst., vol. 32, no. 2, 1915, p. 77) considered this character of generic im- 

 portance, founding on it his genus Micrognathias, to which he referred S. jonesi, 

 with several exotic species, though he did not deal with S. crinigerum} 



1 Since the foregoing was written, a paper by Carl L. Hubbs (Occas. Papers Mus. Zool. 

 Univ. Mich., No. 20, 1935) has come to my attention, wherein he made Siphostoma 

 crinigerum Bean and Dresel the type of a new genus, Anachopterus. 



