122 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Dentex natalensis Gilchrist and Thompson, Ann. South African Mus., vol. 6, 

 p. 156, 1908-1911 (type locality: Natal); Ann. Durban Mus., vol. 1, pt. 4, 

 p. 356, 1917 (reference). — Fowler, Proc. Acad. Nat. Sci. Philadelphia, 

 1925, p. 240 (Delagoa Bay). 



Depth 2%; head 3%, width 2Ko. Snout 2% in head; eye 3%, 1% 

 in snout, 1}^ in interorbital; maxillary reaches % in snout, expansion 

 Yi of eye, length 2% in head; 4 upper front canines, 6 lower, row of 

 outer larger teeth, posterior partly molarlike and anteriorly inner 

 band of small pointed teeth; interorbital 3 in head, convex. Gill 

 rakers 8 + 13, lanceolate. 



Scales 51 in lateral line to caudal base and 2 more on latter; 8 

 above, 16 below, 62 predorsal forward to front nostril, 8 rows across 

 cheek to preopercle edge and flange scaly. Scales with 9 basal striae; 

 96 to 147 apical points, with 18 to 22 transverse rows of basal segments. 



D. XII, 10, I, fourth spine 1% in head, third ray 2%; A. Ill, 7, i, 

 second spine 2K, second day 2%; ventral 1%; caudal deeply emarginate, 

 2% in combined head and body to caudal base; pectoral 3%. 



Brown above, paler below. Along back and upper side each row 

 of scales with median dark narrow band. Vertical fins and ventral 

 dusky. Pectoral pale. 



Natal coast, Delagoa Bay. 



One example, A.N.S.P. Delagoa Bay. H. W. Bell Marley. Length, 340 mm. 



DENTEX UNDULOSUS Regan 



Dentex undulosus Regan, Ann. Natal Gov. Mus., vol. 1, p. 252, pi. 40, 1908 

 (type locality: NE. Bird Island, Natal; Table Bay, Cape Colony). — Gil- 

 christ and Thompson, Ann. Durban Mus., vol. 1, pt. 4, p. 357, 1917 (refer- 

 ences). — Thompson, Marine Biol. Rep. South Africa, No. 4, p. 83, 1918. — 

 Barnard, Ann. South African Mus., vol. 21, pt. 2, p. 719, fig. 26, 1927 (outline 

 of head) (Table and False Bays, Agulhas Bank, Natal) . 



Dentex rwpesiris (not Valenciennes) Castelnau, M6m. Poiss. Afrique Australe, 

 p. 28, 1861 (Agulhas Bank, Algoa Bay, Kalb Bay, Cape of Good Hope, 

 Table Bay). 



Depth 2K to 3; head 3% to 3%, profile prominently gibbose above 

 snout with age. Eye 2>]i to 5%, 1 to 2 in snout, 1 to 2 in interorbital, 

 twice preorbital depth to \)i in same with age; canines moderate to 

 strong; hind nostril elongate-ovate. Gill rakers 14 to 16 below. 



Scales 57 to 61 in lateral line; 9 or 10 above, 18 to 20 below, pre- 

 dorsal scales extend forward to front nostril; 9 to 11 rows on cheek 

 with preopercle flange scaly with age. 



D. XII, 10, fourth and fifth spines longest, equal postorbital; 

 A. Ill, 9. 



Rose-red, shading white on belly, with silvery, golden, and metallic 

 blue, green or violet-green reflections on back. Four to six irregular 

 wavy, narrow, longitudinal, cobalt or ultramarine blue streaks, 

 uppermost along dorsal nn base; each streak bordered above and 

 below (uppermost one bordered below only) with pink. Cloudy 



