TELEOSTEI 



TRIBE 1. HISTICHTHYES. 



The body is deep and compressed ; there are two spinous rays in the 

 dorsal fin, and eight or nine rays in the pelvic, and the pectoral dermal 

 rays rest partly on the scapula and partly on the four radials ; one of 

 these articulates with the coracoid. The ribs are attached to parapophyses ; 

 there are thirty-three vertebrae. 



Family VELIFERIDAE. Velifer, Schlep. 



TRIBE 2. TAENIOSOMI. 



The very compressed body is elongated, and may attain a length of 

 20 feet, with some ninety vertebrae. The dorsal fin is very long, and is 

 supported by unjointed dermal rays. The anal is short or absent. 

 Parapophyses are present, but the ribs are more or less completely 

 reduced. Of the three pectoral radials at least two rest on the coracoid. 

 The post-temporal has become simple. 



Fio. 505. 

 Jlegcdecus glesne, Asc. (From Jordan and Everniaiin.) 



Family LOPHOTIDAE. The pelvic fins, if present, are small, widely 

 separated, and with five or six dermotrichs. The anus is near the hind 

 end of the body, with a small anal fin just behind it. A long spine 

 represents the first dorsal ray. 



Lophotes, Giorna ; warm seas. Eumecichthyes, Regan. 



Family TRACHYPTERIDAE. The pelvic fins are close together, but 

 the dermal rays may be reduced to one (Regalecus). The anus is about 



