THE FISHES OF NEW JERSEY. 387 
Family ECHENEIDID. 
The Remoras. 
Body fusiform, elongate. Mouth wide, with villiform teeth in 
jaws, on vomer, palatines and usually tongue. Premaxillaries 
not protractile. Lower jaw projecting beyond upper. Opercles 
unarmed. Gill-membranes not united, free from isthmus. Gills 
4, a slit behind fourth. Gill-rakers short. Pseudobranchiz 
obsolete. Branchiostegals 7. No air-vessel. Several pyloric ap- 
pendages. Vertebree more than 10+ 14. Body covered with 
minute cycloid scales. Spinous dorsal modified into a sucking- 
disk placed on top of head and neck, and composed of a double 
series of transverse movable cartilaginous plates, serrated on 
their posterior or free edges. Dorsal and anal fins long, without 
spines, opposite each other. Caudal emarginate or rounded. 
Pectorals placed high. Ventrals I, 5, thoracic, close together. 
No caudal keel and finlets. 
Fishes of moderate size, often found attached to sharks, or 
other large fishes and floating objects, by means of the dorsal 
disk, and are thus carried for great distances in the sea. Two 
species recorded from our coasts. | 
Key to the genera. 
a. Body slender; ventrals narrowly adnate to abdomen. ECHENEIS 
aa. Body robust; ventrals broadly adnate to abdomen. REMORA 
Genus EcHENEIS Linnzus. 
The Shark Suckers. 
Echeneis alba-cauda Mitchill. 
PLATE 84. 
Suck Fish. White Tailed Remora. Indian Remora. 
Head 47%; depth 834; D. 33; A. 34; lamine in disk 21; 
mandible 2'/,, in head; pectoral 1144; ventral 144; third anal 
ray 2; caudal 144; snout 2'/,, in head, measured from its own 
