ADDENDA 57. SCOMBERESOCID^ TYLOSURUS. 901 



ries. Distance from snout to dorsal 2'^ times length of head, its length 

 nearly twice length of head; anal beginning close behind vent, its 

 length half the body. Pectoral short and rounded, its length (uncertain) 

 about one-third tlie head. Ventrals broad, with peduncle-like bases 

 thickly covered Avith scales; closely adjacent, separated by a narrow 

 groove. Head 7.}; depth 9. D. X; A. XIX, 130; P. about 17; V. II, 

 9; B. 8; scales about 20-400-3G. Grand Bank, Xewfoundland. {Goode.) 

 One large specinien known, taken from the stoinacli of a Somniosus. 

 (Goode, Proc. U. S. Nat. Mn^. iii, 5:3r>, ld80.) 



Page 373. To the account of Tylosurus Jiians add: 



Body slender, very strongly compressed, nearly twice as deep as 

 broad. Tail without keel. Caudal deeply and subequally forked; ven- 

 trals inserted nuich behind middle of body (not a little before middle, 

 as stated by C. & V.). Side with a series of faint roundish bluish 

 blotches; pectoral blackish, pale at base. Head 3| to 3| in length in 

 adult examples. B. 24; A. 25. 



(^ Belonc hitnis C. & V. xviii, 432, and (iiiiitlier, vi, •JJ^^: Belovc macidata Poey, Mem. 

 Cuba, ii, 290.) * 



Page 373. Instead of Tylosurus latimanus read: 

 591. T. caiibbicii<< (Le S.) J. & G. 



To the description in the text add: 



Body very elongate, subterete, the depth little more than the breadth 

 of body, and considerably less than length of postorbital part of head. 

 Tail scarcely depressed, but with a small black dermal keel. Young 

 and half-grown specimens with the last rays of dorsal elevated, nearly 

 or quite as high as anterior rays; adults with the posterior rays of dor- 

 s«al low, not longer than the median. Caudal unequally forked. Jaws 

 rather strong, slenderer in the young. kScales very small. Tip of pec- 

 toral black. Head 3i in adults; 3 in young. I). 24; A. 22. L. 4 feet. 

 West Indies; occasional northward. 



{Ildone carribaa Le Sueur, Jouni. Acad. Nat. Sci. Pbila. ii, 127, 182:}: I'.donc lalimana 

 Puey, Mem. Cuba, ii, 292, ISOO: lidone caribbaa Giinther, vi, 241 : Belone Jatlmanufi Giin- 

 ther, vi, 249.) 



Page 374. After Tylosurus exilis add : 

 600 (&)• T. griadius r..-an MSS. 



(trreen ; pectorals and dorsal blackish. Body robust, little com- 

 pressed, its greatest breadth a little more than f greatest depth ; cau- 

 dal peduncle slightly depressed, a little broader than deep, with a slight 

 black dermal keel. Head broad, interorbital space nearly | length of 

 postorbital i)art of head, with a broad, shallow, nearly naked median 



