SYNGNATHIDA, — XLII. 95 
d. Ventrals chiefly black, inserted midway between eye and base C. 
230. E. vinciguerrze Jordan & Meek. P. dusky, uniform or 
with a small white cross stripe; D. and A. without black. Head 
4}; depth 64. Scales 48. L.12. Atlantic, N. to Grand Banks. 
(Eu.) (To Dr. Decio Vinciguerra, of Rome.) 
dd. Ventrals nearly white; inserted midway between opercle and tail. 
231. B. volitans L. P. dark brown, with an oblique whitish 
band from axil to middle of fin; D. and A. without black. Head 
44; depth 64. D.12. A. 11. Scales 55. L.12. Atlantic, N. 
to Grand Banks, frequent. (Eu.) (Lat., flying.) 
aa. Anal short, its base half to two-thirds that of dorsal, its first ray behind 
first of D.; anal rays 9 or 10; dorsal 12 to14. (Cypselurus Swainson.) 
cv. Second ray of pectoral divided (first simple); 8d and 4th longest; 
V. midway between eye and tail; P. without round black spots; 
young with barbels. 
f. D. and A. plain whitish; V. pale. 
232. EB. heterurus Rafinesque. P. with an oblique white band 
on lower half. Head 43; depth 54. Scales 58. L.12. Atlantic, 
the commonest species on our coasts. (Hu.) (érepos, unequal ; 
ovpa, tail.) 
ff. D. and A. blotched or spotted with black; V. chiefly black. 
233. EB. furcatus Le Sueur. P. black, with a white band; C. 
with 3 dusky cross-bars. Head 44; depth 54. Scales 46. L. 12. 
Warm seas, N. to Cape Cod. (Eu.) (Lat., forked.) 
ee. Second ray of P. simple, like the first; V. chiefly black. 
234. B. gibbifrons Cuv. & Val. Snout more bluntly rounded 
than in any other species, 44 in head; V. midway between eye 
and C.; P. dusky, paler at base; vertical fins plain, rather dusky. 
Head 4; depth 54. Scales 46. L.12. N. Atlantic, rare. (Lat., 
gibbus, swollen; frons, front.) 
OrpER XVII. LOPHOBRANCHII. (Tue Tort-cittep 
FIsuEs.) 
Gills contracted, tufted, composed of small rounded lobes, at- 
tached to the gill-arches; pharyngeal bones reduced in number; 
mouth very small, toothless, at the end of a tubular snout; post- 
temporal grown fast to skull; anterior vertebra modified, with ex- 
panded apophyses; gill covers reduced to a simple plate; skin with 
bony plates arranged in rings; fins small. Two families, the E. 
Indian Solenostomatide have spinous dorsal and ventral fins; ours 
lack both. (Addos, tuft; Bpdyxea, gills.) 
Famiry XLII. SYNGNATHIDAS. (Tue Prre-risues.) 
Body elongate, covered with bony rings; gill openings reduced 
to a small aperture behind upper part of opercle; no spinous dor- 
