124 BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



gill cavity, peritoneum, and the posterior part of the body; the dis- 

 tribution is more northern, and the depth inhabited possibly a little 

 greater. 



Description of type.— Dorsal 52; anal 47; pectoral 32; caudal 10; 

 pyloric coeca 21, Depth 4.3 in length without caudal; head 4. Eye 

 3.3 in head; disk 4. 



Body heavy anteriorly, deep, short, tapering rapidly to the caudal. 

 Head heavy; interorbital region broad and flat, cheeks nearly ver- 

 tical, mouth broad; maxillary reaching vertical from middle of pupil. 

 Teeth simple or one or both lateral lobes faintly developed, moder- 

 ately stout to slender, hardly recurved ; inwardly diverging rows very 

 oblique and difficult to count, 10 or 12 in the half of each jaw; out- 

 wardly diverging rows more distinct, close set. Snout short, about 

 4 in head, broad, not projecting bej^ond mouth. Nostril in a short 

 tube. Eye large, prominent; pupil oval, horizontal. Gill slit small 

 about 3.3 in head, extending up from the base of the upper pectoral 



Figure 44.— Careproctus spectrum. Teeth from type 



ray. Two suprabranchial pores present. Prickles absent. Pyloric 

 coeca 21, 2.4 in head, on the left side. 



Dorsal rays increasing gradually in length, the anterior rays rather 

 stiff, their connection Avith the skin uncertain. Caudal of 10 slender 

 rays, mutilated, connected for half its length to the anal. Pectoral 

 notched; the upper lobe of 25 rays, reaching anal; lower lobe of 

 eight slender, graduated rays, coiled at the tips, free nearlj^ to the base, 

 reaching anal, nearly as long as the head. Disk moderate, the mar- 

 gin rather thick, folded over posteriorly, the disk somewhat trian- 

 gular, a little broader than long; distance from tip of lower jaw to 

 disk 9.9 in length without caudal; front of disk just behind vertical 

 from pupil. Vent next to disk. 



Coloration: Skin transparent, lax; muscles flesh colored; mouth, 

 gill cavity, and internal organs pale; peritoneum silvery, without 

 dots; abdomen silvery. 



Synopsis. — Dorsal 52; anal 47; pectoral 32; pyloric coeca 21. 

 Depth 4.3 in length without caudal; head 4. E3'e 3.3 in head; disk 



