686 NEW YORK STATE MUSEUM 



Suborder discocephali 

 Family echeneididjve 

 Remoras 

 Genus echeneis (Artedi) Linnaeus 

 Body comparatively elongate, the vertebrae 14+16=30; disk 

 long, of 20 to 28 laminae; pectoral pointed, its rays soft and 

 flexible; soft dorsal and anal long, of 30 to 41 rays each; caudal 

 lunate in the adult, convex in the young. Species of wide dis- 

 tribution, attaching themselves mainly to sea turtles and large 



fishes. 



339 Echeneis naucrates Linnaeus 



Sharksiwker; Siicki/ng Fish 



Eclieneis neucrates (misprint for naucrates) Linnaeus, Syst. Nat. ed. X, I, 



261, 1758. 

 Echeneis naucrates Mitchill, Trans. Lit. & Phil. Soc. N. Y. I, 377, 1815; 



De Kay, N. Y. Fauna, Fisb. 308, 1842; GrNXHER, Cat. Fish. Brit. 



Mus. II, 384, 1860; Jordan & Gilbert, Bull. 16, U. S. Nat. Mus. 416, 



1883; Bean, Bull. Am. Mus. Nat. Hist. IX, 371, 1897; H. M. Smith, 



Bull. II. S. F. C. 1897, 106, 1898; Jordan & Evermann, Bull. 47, U. S. 



Nat. Mus. Ill, 2269, 1898; W, pl. CCCXXIX, fig. 796, 1900. 

 Eclieneis albacauda Mitchill, Am. Month. Mag. II, 244, February, 1818. 

 Echeneis albicauda De Kay, N. Y. Fauna, Fish. 307, pl. 54, fig. 177, 1S42; 



Long Island; Hudson River. 



Body elongate, subterete, slender. The length of the body is 

 five and one half times the length of the head. The disk is con- 

 tained three and two thirds times in the length of the body, 

 which is about seven and one half times the width between the 

 pectorals; disk long. Dorsal and anal fins longer than the disk; 

 inner rays of ventral fin narrowly adnate to the abdomen; caudal 

 becoming emarginate with age. Vertebrae 14+16. Vertical fins 

 low; pectorals three fourths length of head, rather long and 

 acute; lower jaw projecting, with the tip flexible; maxillary 

 barely reaching vertical from nostril. D. XXI to XXV-32 to 

 41; A. 34 (32-38). 



Brownish; the belly dark like the back, as usual in this family; 

 sides with a broad stripe of darker edged with whitish, extending 

 through eye to snout; caudal black, its outer angle whitish; 

 pectorals and ventrals black, sometimes bordered with pale; 

 dorsal and anal broadly edged with white anteriorly. 



