440 SPAEIDiE. 



ridge is strong, rounded, not prominent, witn a narrow miiciferoiis 

 channel behind. The operculum is irregularrly quadrangular, half as 

 wide as high, with the posterior and superior sides shortest and very 

 slightly emarginate. There is a ridge on its inner surface, obli(]uely 

 descending downwards. The interoperculum is longer and broader 

 than the suboperculum. The turbinal bone is elongate and rather 

 widened posteriorly ; the prseorbital rhombic, with the anterior njargin 

 membranaceous and much wider than the remainder of the infra- 

 orbital ring. There is a bony plate at the inner side to support the 

 eyeball from beneath. The frontal bones, between the orbits, are 

 slightly convex, with several low ridges and pores, radiating from 

 the anterior extremity of the occipital crest. The occipital crest is 

 very high, strong, triangular, with the upper margin slightly convex, 

 and extends to above the centre of the orbit. The lateral crests also 

 are Avell developed, though veiy much lower than the median one. 

 The basal portion of the brain-capsule is compressed, the basioccipital 

 having a very wide quadrangular foramen behind the occipital joint. 

 The large free space between the coracoid and radius is triangular, 

 widest above, and not twice as long as broad. Each of the pubic 

 bones is formed by three lamellae of nearly equal development. 



There are ten abdominal and fourteen caudal vertehrcB, the length 

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

 latter as 1 : 1'4. There are three spimous interneural spines, each 

 with a small process above, directed forwards, as in many Acantho- 

 pteiygian fishes ; the process of the fli'st is rather longer than the 

 others. The first interhaemal has an anterior ridge, and is strong and 

 elongate, its length equalling that of the second vertebra to the eighth. 



There are eight rather narrow incisors in both the jaws, with a 

 group of granular teeth behind. The immature teeth, destined 

 to replace those which arc in use, make their ai)}>earance on the 

 outer side of the bone. The molars are arranged in two series in 

 both the jaws ; sometimes several smaller ones extend further back- 

 wards at the inner side of these series, and give the ipixjarancc of a 

 thud. 



2. Sargus rondeletii. 



2dpyos,Aristot. viii. c. 2,ix. c. 5 ; JEHan, i. c. 23, 2G, xiii. c. 2; Oppian, 



iv. 599, 308-403; Athen. vii. 313, 321. 

 Sargusi, Ovid. Hal. v. 106 ; Plin. ix. c. 17, 51, 59 ; Bellon. Aqiiat, 



p. 242; Romk'l. v. c. 5. p. 122 ; Salv. f. 178 ; Gesn. Aquat. p. 828; 



Gfonor. Zoophyl. p. 63. no. 219. 

 Spams sargiis, L. Gm. p. 1270 ; HI. taf. 264; Bl. Schn. p. 270; Lacep. 



iv. pp. 27, 77 ; Rissn, Ichth. Nice, p. 236. 



variegatus, {Bonnat.) Lacep . iv. p. 107. 



Sargus rauous, Geoffr. Descr. Etj. Puiss. pi. 18. f. 1. 



roridciletii, Cav. tV Val. vi. p. 14. pi. 141 ; Guichetiot, Eorploi: Sc. 



Alf/er. Poiss. p. 46 ; Webb SfBerthel. Hist. Nat. lies Canar. Poiss. p. 28. 



J). LLl?. A. ^-. L. lat. 65. L. transv. 8/16. Ca;c. pylor. 5. 



12-15 13-14 ' ^ " 



Vert. 10/14. 

 Incisors rather broad, imj)lantcd obliquely. Three series of molars 

 above, two beneath. Th'- diameter of the ey(^ i-s 4. J in the length of 



