440 srAKiD^E. 



ridge is strong, roimded, not prominent, with a nan'ow muciferous 

 channel behind. The operculum is ii-regularly qiiadrangular, half as 

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

 slightly emarginate. There is a ridge on its inner siu'face, obliquely 

 descending downwards. The interoperciilum is longer and broader 

 than the subopercidum. The turbinal bone is elongate and rather 

 widened posteriorly ; the preeorbital rhombic, with the anterior margin 

 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, triangidar, with the upper margin slightly convex, 

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

 are well developed, though very much lower than the median one. 

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

 having a very wide qnadi-angular 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 vertebr(e, the length 

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

 latter as 1 : 1-4. There are three spvmous intemeiu-al spines, each 

 \vith a small process above, directed forAvards, as in many Acantho- 

 pterygian fishes ; the process of the fii-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 nan-ow incisors in both the jaws, with a 

 group of granidar teeth behind. The immatiu'e teeth, destined 

 to replace those which are in use, make theii' appearance on the 

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

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

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

 thii-d. 



2. Sargus rondeletii. 



Sdpyos,Aristot. viii. c. 2, ix. e. 5 ; jElian, i. c. 23, 26, xiii. c. 2; Oppian, 



iv. 599, 308-i03; Athen. vii. 313, 321. 

 Sargus, Ovid. Hal. v. 106; Plin. ix. c. 17, 51, 59; Bellon..Aquat. 



p. 242 ; Rondvl v. c. 6. p. 122 ; Salv. f. 178 ; Gesn. Aquat. p. 828 ; 



Gronov. Zoophijl. p. 03. no. 219. 

 Sparus sargus, L. Gni. p. 1270; BI. taf. 264; Bl. Schn. p. 270; Lacep. 



iv. pp. 27, 77 ; Risso, Ichfh. Nice, p. 236. 



variegatus, (Bomiat.) Lacep. iv. p. 107. 



Sargus raucus, Geoff)-. Descr. Eg. Poiss. pi. 18. f. 1. 



rondeletii, Ctny. S,- Vol. vi. p. 14. pi. 141 ; Guichenot, ExjjJor. Sc. 



Alger. Poiss. p. 40 ; Webb ^Berthel. Hist. Nat. lies Canar. Poiss. p. 28. 



D. iiiL2. A. ■—. L. lat. 65. L. transv. 8/16. Ca?c. pylor. 5. 

 Vert. 10/14. 

 Incisors rather broad, implanted obliquely. Thi-ee series of molars 

 al)ove, tAVO beneath. The diameter of the eye is 4j in the length of 



