57. SCOMBERESDCID^ TYLOSURUS. 373 
to the caudal keel, on which the genus was originally based, a character 
of little importance.) 
a. Caudal peduncle not keeled. 
b. Posterior rays of the dorsal prolonged, longer than the anterior rays. 
596. T. timsis (C. & V.) J. & G. 
Olive green above, silvery below, sides with a row of obscure dusky 
blotches in the young 5 iiosterior portion of dorsal fin black. Snout a 
third longer than the rest of the head. Maxillary hidden by the pre- 
orbital. Dorsal beginning opposite front of anal, its x)Osterior rays much 
elevated, their tips reaching beyond base of caudal. Anal fin slightly 
falcate, the last rays very low. Tail comiiressed, deeper than broad. 
Head 3 in length. D. 20; A. 27. Virginia to the West Indies and the 
west coast of Mexico, occasional on our coast. 
{Belone Mans Cuvier &, Valenciennes, xviii, 432; Bclone Mans Gunther, vi, 248.) 
bb. Middle and posterior rays of dorsal short, subequal. 
c. Dorsal aud anal long, each with more than 20 rays. 
597. T. latimuoius (Poey) J. & G. 
Green above, white below. Head and body elongate.* Eye lO.J in 
head. Beak twice as long as the rest of the head. Pectoral rather 
long and pointed, broader and shorter than in T. longirostris. Bones 
not green. Caudal forked. B. 24; D. 24; A. 25. Cuba; occasional 
on our Atlantic coast. (Buzzard’s Bay; Goode.) 
{Belone latimana Poey, Mem. Cuba, ii, 292, 1860: Belone latimamis Gunther, vi. 249; 
Bclone latimana Goode, Proc. U. S. Nat. Mus. 1878, 6.) 
cc. Dorsal and anal shorter, each with less than 20 rays. 
d. Tail compressed, deeper than broad. 
5D§. T. aiotatus (Poey) J. & G. 
Green above, yellow below; vertical fins bluish, their tips tinged 
with orange. Free portion of tail comiiressed, deeper than broad. 
Head flat above, with deep scaly median groove. Superciliary region 
striated. Base of premaxillaries depressed ; maxillary hidden by the 
preorbital. Teeth moderate, wide-set; no vomerine teeth. Eye less 
than interorbital space, f the postorbital part of head. Body broad, 
subcylindrical. Pectoral as long as postorbital iiart of head ; ventrals 
very small; anal scaly at base; caudal slightly emargiuate. Scales 
rather large. Head 2J. D. 13; A. 14. {Giinther.) West Indies, north 
to West Plorida. 
{Belone notata Poey, Mem. Cuba, ii, 293, i860: Belone notata Gunther, vi, 248: Belone 
notaia Goode & Bean, Proc. U. S. Nat. Mus. 1879, 151.) 
del. Tail depressed, broader than deej). 
