438 Bulletin American Museum of Natural Histoiy, [Vol. XIX, 



Behind and mesiad of the palatopterygoid arch are seen 

 the anterior ends of the stout hyoids. Slender branchioste- 

 gals appear to be attached to these near their anterior ends. 

 Some of the upper branchiostegals are widened out at their 

 posterior ends and curled upward, but not so conspicuously 

 so as in Anguilla. The opercular bones appear to have re- 

 sembled those of Anguilla, but mostly only impressions of 

 these on the matrix remain. 



The bones of the roof of the skull have been considerably 

 injured, so that the exact limits of the elements cannot be 

 determined. 



Fragments of the cleithrum are present. The pectoral fins 

 are well preserved, and the rays, apparently 16 in number, 

 had a length of nearly 9 mm. The number of the baseosts 

 cannot be determined. There are distinct evidences of the 

 scapula and the coracoid. 



Both ventral fins are present, attached to their supporting 

 bones (PI. xxxvi. Figs, 2,3,7;./.). The latter are only slightly 

 more than 2 mm. long. The extremities of the fin rays are 

 broken off. There appear to have been about 8 rays in each 

 fin. These fins are placed 65 mm. behind the occiput, and 

 were doubtless only a short distance in front of the anal fin. 

 Owing to the position of the fish, the dorsal fin is not displayed. 



There are 31 vertebrse preserved, the last of which lies over 

 the ventral fins. The centra are constricted, and 5.5 of them 

 occupy the space of 10 mm. The ribs are slender and rather 

 long, some of them 5.5 mm. 



There are evidences of the presence of two rows of bony 

 plates, one on each side of the body. These probably occupy 

 the position of the lateral line. On the right side these are 

 shown as impressions on the matrix, and, beginning just be- 

 hind the cleithrum, continue as far as the specimen is pre- 

 served. On the left side, they may be followed throughout 

 the greater part of the abdominal region, and in several places 

 are represented by thin bony scales. These plates, or scales, 

 are relatively large, six of them being found in 10 mm. No 

 other scales or plates are seen on the body. 



Collected at Hajula. 



