RIXATOR 35 



the soft rays, which number about 14, and nearly equal to depth of body. 

 The anterior soft rays are high, the posterior rather rapidly shortened ; 

 anal with the second interhaemal very strong, more than half depth of 

 body, supporting the very strong curved second spine, which is twice the 

 first spine and longer than the third, % depth of body, as long as dorsal 

 spines. Seven soft rays preserved, these rapidly shortened behind; pec- 

 torals very broad, of about twenty rays, broken behind; ventrals just 

 below them, apparently I, 5. Caudal fin large, subtruncate ; hypural 

 rather broad ; no trace of scales. 



No. 341, whole small fish with broken head, 7*4 inches. Vertebrae 

 24, a little longer than deep, each with 3 grooves ; caudal lost, ventrals 

 I, 5, under broad pectorals. D. XII, I, 12 or 13, an accurate count. A. Ill, 

 about 8. Dorsal spines high. Second anal spine large, with strong inter- 

 haemal. 



No. 76. Fragment, showing some dorsal spines and large anal spine. 



No. 310. Pectoral and ventral fins of a large fish. 



No. 323. Eight spines of the first dorsal, with a few vertebras. 



No. 141. The head and part of the body 7 inches long, preserved 

 in counterpart, the total length about 10 inches ; seems to belong to 

 RIXATOR INEZL^:. 



Head large, as long as body from gill opening to front of anal fin ; 

 jaws long, apparently subequal, armed with small, sharp, even teeth. 

 Maxillary about reaching front of eye, and apparently 3 in head; preo- 

 percle apparently entire ; opercle large, nearly smooth, without evident 

 spine; upper part of head crushed; greatest depth of body 1% in length 

 of head. 



Body vertebrae 14 to front of soft anal ; 7 present behind these ; 3 or 4 

 lost, the actual number probably 10 -f- 14 or 15 = 25 ; vertebrae small, 

 deeper than long, each with a median groove with moderate neural and 

 haemal spines ; ribs rather short ; interneurals simple, straight, directed 

 slightly backward and with a thin wing; those of soft dorsal smaller, 

 scarcely winged or "dagger-shaped" ; interhsemals weak. Dorsal fin 

 deeply notched, XIII, I, 13, but continuous, the anterior part of 12 spines, 

 the third being longest, 2% in head ; last spine a little longer than first, 

 4% in head ; first dorsal spine close behind head, attached to first inter- 

 neural. First ray of second dorsal a slender spine, 2^4 in head ; the first 

 soft ray high, the others progressively shorter to the last, which is not 

 14 the longest ; anal inserted behind soft dorsal, its rays damaged ; the 

 spines lost, although a trace of a strong interhaemal is present, with a 

 mark below it, a trace perhaps of the second spine. Pectoral very broad, 

 the rays 15 or more, the fin 2% in head: ventral fins lost. Some traces 

 of small scales on side of head. 



