45. TRIGLA. 207 



hiimenis* is nearly straight, with two short processes for the junction 

 with the scapula, and with a flat, triangular, ridged spine immediately 

 behind the processes mentioned. The epieoracoid is suspended at the 

 inner side of the spine, and is a single, styhform, rib-like bone. The 

 idna and radius are separated from each other by a wide free space : 

 the former is situated before the upper carpal bone, and is similar in 

 size and shape to one of the larger carpal bones ; the radius is elon- 

 gate, triangular, with a small foramen in the middle. There are 

 fom* carpal bones, the upper of which is small ; the pectoral ap- 

 pendages are articulated to the two lower ones. Each pubic bone 

 has two limbs : the anterior is formed by three lamellas, the interior 

 and inferior of which are the broadest ; the anterior limbs of both 

 bones converge towards the symphysis of the coracoids, leading a 

 cordate free space between them. The posterior Umb, with its 

 feUow, forms a regularly triangular plate, emitting anteriorly a very 

 long and slender process, which reaches nearly to the other extre- 

 mity of the fi'ee space. There is no glossohyal ; the urohyal is a 

 simple vertical plate. 



There are foiu'teen abdominal and twenty caudal vertehrce, the 

 length of the former portion of the vertebral column being to that of 

 the caudal as 1 : 1-55. The three anterior vertebrfe are rather com- 

 pressed in their longitudinal diameter. The structure of the inter- 

 neiu'al spines is the same as in T. pini. The above description is 

 taken from a specimen twenty-foiu* inches in length, probably a 

 female. 



In specimens fifteen inches in length, the number of abdominal 

 vertehrce is the same, \az. foiu'teen ; but that of the caudal portion is 

 twenty-foiu' ; and the ratio of the lengths of both portions is 1 : 1-86. 

 Perhaps these fishes are males. 



12. Trigla cuculus. 



Milviis, Rondel, x. c. 8. p. 297 ; Aldrov. ii. c. 58. p. 279. 



Trigla cuciilus, Bloch, ii. p. 124. tab. 59 j Bl. Sclin. p. 14; Risso, Ichth. 



Nice, p. 208 (not Hist. Nat.). 

 milvus, Lacep. iii. pp. 340, 362 ; Risso, Hist. Nat. iii. p. 395 ; 



Cm: 4'- Val. iv. p. 67 ; Bonap. Faun. Itah Pesci, pi. . f. 3. 



blocliii, Yai-rell, Brit. Fishes, i. p. 56. 



Triglse gmnardi var., Pani. Fishes Frith of Forth, p. 21. pi. 23. 



D. 9 1 19. A. 19. Cffic. pylor. 5. Yert. ^5. 



The snout is elongate, with the iipper profile straight ; the space 

 between the eyes is slightly concave, and less than the diameter of the 

 eye. Pracorbital anteriorly -ndth some smaU prominent spines. The 

 bony plates along the base of the dorsal fin have smootli edges, each 

 terminating posteriorly in a spine. The dorsal spines are robust : 



* Prof. Owen retains the name of ' humerus ' for the same bone to which it 

 has been applied by Cuvier and the German anatomists, whilst he alters the 

 name of 'coraeoid' into that of ' ejiicoraooid ' (see Archef//pc). Owing to a mis- 

 representation of Prof. Owen's theory in Sir J. Eichardson's Ickthyologi/, in all my 

 foregoing descriptions the ' coraeoid ' has been called the ' humerus,' and vice versa. 



