120 



BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



Description of No. 28812, U.S.N.M.; dorsal 53; anal 49; pectoral 28; 

 pyloric coeca about 9. Head about 5.3 in length without caudal. 

 Eye 3.4 in head; disk 3.2. 



Figure 39.— Careproctus ranula. Teeth from specimen No. 9556, Stanford University 

 Zoological Museum, showing variation from type 



Body distended with eggs, rather elongate and slender. Head low, 

 broad, nearly as wide as deep; interorbital flat; occiput low; sides of 

 head nearly vertical. Mouth broad; maxillary reaching posterior 



Figure 40.— Careproctus ranula. Teeth from type 



margin of pupU. Teeth simple or the lateral lobes wealdy developed, 

 rather slender and elongate, slightly recurved; the oblique rows 

 difficult to count; about 10 or 12 in the half of each jaw; inner teeth 



