FISHES — SYNGNATIDAE — SYNGNATHDS LEPTOKHYNCHUS. 



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List of specimens. 



2. SYNGNATHUS BREVIKOSTRIS, Grd. 



Short-nosed Fipe-(ish. 



Spec. Char. — Head contained eight times in the total length : a little over twice in that of the body. Anterior rim of the 

 orbit nearer the apex of the snout than the base of the pectoral fins. Longitudinal diameter of the orbit entering seven times 

 and a half in the length of the side of the head. Origin of dorsal fin placed opposite the anterior edge of the anal aperture; its 

 base, in the male sex, entering twice and a half times in the length of the body. Olivaceous brown, with darker maculae 

 above and whitish dots beneath. 



SvN. — Syngnathus brevirostris, Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1854,156. 



The total length of the specimen before us measures about six inches and a quarter ; the head 

 forming the eighth part of it. There are eighteen j^lates anterior to the vent, and thirty-seven 

 posterior to it. The base of the dorsal fin enters twice and one fourth in the length of the 

 body ; the posterior margin of the same fin is nearly equidistant between the apex of the snout 

 and the extremity of the caudal fin. The length of the sub-caudal pouch is equal to the 

 distance between the vent and the pupil. 



D 30; A 0; C 1, 4, 4, 1; VO; P 12. 



Tlie color is olivaceous brown ; the head being vermiculated, and the body maculated with 

 blackish brown ; the lower portion of the flanks and the belly are dotted with white. The caudal 

 region assuming a darker tint than the body and the head. 



List of specimens. 



3. SYNGNATHUS LEPTOEHYNCHUS, Grd. 



Sleiider-uosed Pipe-fish. 



Spec. Char. — Head contained six times and a half in the total length, caudal fin excluded : twice in that of the body. 

 Anterior rim of the orbit nearer the base of the pectoral fins than the apex of the snout. Longitudinal diameter of the orbit 

 entering seven times and a half in the length of the side of the head. Origin of dorsal fin situated nearly opposite the anterior 

 edge of the vent, rather posteriorly than anteriorly to that point ; its base, in the female sex, entering thrice on the distance 

 between the concavity of thoracic belt and the posterior edge of the anal aperture. Dorsal region yellowish brown ; sides 

 olivaceous and vermiculated ; abdomen yellowish. 



Syn. — Syngnalhiis leptorhynclms , Grd. in Proc. Acad. Nat. Sc. Philad. VII, 1854,156. 



The entire length of the specimen observed measures six inches, the head forming more than 

 the seventh part of it. There are eighteen plates anterior to the vent, and forty-one posterior 

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