TURIO 15 



Turio (Jordan and Gilbert), new genus. 

 (Type: TURIO WILBURI Jordan and Gilbert.) 



Mackerels of rather small size, with the body moderately elongate, 

 the vertebrae about 28 ; longer than deep and not strongly grooved. Head 

 long, apparently pointed; mouth large; traces of a strong lower jaw; the 

 opercular region much expanded, its length about 1^ in rest of head and 

 greater than distance from front of eye to edge of preopercle ; teeth com- 

 pressed, rather wide-set, smaller than in SCOMBEROMORUS, the number 

 about 25/25 on each side. First dorsal anteriorly high, of about 20 slender 

 spines ; interhaemals short, slender, and not straight, almost hair-like. This 

 genus has the vertebral column of SCOMBER and AUXIDES, differing from 

 these, as well as from THYRSOCLES, in the very much longer opercular 

 region. From TUNITA, which has also high dorsal spines it is separated 

 by the much longer first dorsal. It differs from THYRSOCLES in the form 

 of the dorsal fins and in the very much weaker interneurals, in the much 

 more slender vertebrae, in their smaller number and in the weakness of 

 the lateral ridges. The opercular region is much longer in TURIO than 

 in THYRSOCLES and the head perhaps more pointed. 



The dentition of AUXIDES, which genus TURIO much resembles, is 

 unknown, but that genus is presumably related to SCOMBER, which has 

 conical teeth, in bands. The nearest ally of TURIO is probably EUTHYN- 

 NUS. 



We propose for this genus the name TURIO, a wand or shaft, the 

 the Latin equivalent of vpgig, the root of THYRSITES. 



5. Turio wilburi Jordan and Gilbert, new species. 

 (Plates VI, VII) 



Type 49A. Body with 28 vertebrae, head broken, showing wide mouth 

 and a gill arch with filaments. Head 3^ in length ; depth 3% ; three 

 spines of dorsal perfect; the third very long, 1% in head, 7 or 8 others 

 lying down, the total number indicated by interneurals being 20 ; 13 rays 

 of soft dorsal shown, a short interspace between; vertebrae constricted, 

 longer than deep, with three grooves. Caudal wide, forked, on a slender 

 peduncle ; neurals and haemals long ; interneurals and interhaemals very 

 short and slender, almost hair-like ; those above in pairs ; ribs very oblique, 

 short. Ventrals I, 5, the stout spine long. Specimen a foot long. 



No. 21 is a body without head, 11 inches long. This specimen 

 shows 26 vertebras from the front of the spinous dorsal, 15 from the 

 front neural spine of the first anal ray ; these are relatively slender, longer 

 than deep and somewhat constricted, with no conspicuous lateral ridges, 



