114 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



readies a leDgth of about 15 incbes. It is rarely- brougbt iuto tbe mar 

 kets, altbougb an excellent pan flsb. 



Color in life deep clear blue -green above, mucb darker tban in H. 

 unifasciatus ; sides silvery. No distinct lateral band. Beak dark, its 

 tip briglit orange ; its membrane edged witb white. Lobe of dorsal and 

 upper lobe of caudal always of an intense orange-yellow, which is deep- 

 est toward the tip. Ventrals tipped with yellow. Fins otherwise pale. 

 Sexes colored alike. 



Insertion of ventrals about midway between base of caudal and mid- 

 dle of pectoral. 



We have elsewhere used the name hrasiliensis for this species, but 

 this arrangement seems hardly allowable. Esox hrasiliensis L. is based 

 on two descriptions, the one of a Tylosurus from Brazil, which suggested 

 the name hrasiliensis, the other of a Hemirhamphus from Jamaica. The 

 last is thought by Valenciennes to be identical with his H. hrowni. R- 

 hrowni is said to have 65 scales in the lateral line. If so, it must be a 

 species different from H. halao. In any event, the name hrasiliensis 

 should, I think, be restricted to that one of its component species which 

 came from Brazil, that is, to the Timueu of Marcgrave. 



A Htmirhamphns of this type occurs on the Pacific coast of Mexico. 

 As, however, it has no conspicuous orange on its fins, it will probably 

 prove to be a different species. 



Two exam])les from Key West are' numbered 35044. 



35. Chriodorus atherinoides Goode & Bean. Hard-head. 



Excessively abundant in sandy bays on the sheltered side of the 

 island. It reaches a length of about 10 inches, and is known to the 

 fishermen as '' hard-head." It is an excellent pan-fish, but from its small 

 size it is seldom brought to the markets. Like the Hemirliamphi, it 

 feeds chiefly on green algae. 



Translucent greenish above, with dark dots on the scales; sides 

 silvery, a bright silvery lateral band as in Atherina. This is broadest 

 under the dorsal tin, where it is about as wide as the pupil. 



Head, 4§ in length; depth, o^. D. 1,15 or 1, IG ; A. 1,15; Lat. 1. 

 48. luterorbital space a little broader than eye in adult; eye, 3| in 

 head; snout, 3. Scales rather firm; bones of top of head smooth, hard, 

 translucent. 



Eleven specimens from Key West are numbered 35102. 



SYNGNATHIDiE. 



36. Siphostotna floridse .Jor. &, Gilb. 

 IS^ot rare. 



37. Siphostonia affiue (Giintber). 



Very common in alga^ everywhere about the island of Key West. 



38. Siphostoma louisianae (Giinther). 

 Common. 



