97 

 POMACENTEID^. 



DASCYLLUS ARUANUS, (L.) C. & V. [No. 15104]. 



CluBtodon aruanus, Linn., Syst. Nat., i, 1766, 464. — Bloch, Ausliind. Fische, iii, 1787, 

 62, pi. 198, f. 2.— Bloch, Syst. Ichtli., ed. Schn., 1801, 220.— Shaw, Gen. Zool., 

 iv, 1803, 348. 



Chcctodon abu dafur, ForskIl, Descr. Anim., 1775, 15. 



Lutjanus aruanus, LaciSp., Hist, des Poiss., iv, 1803, 720, 



Pomacentrus aruanus, Euppell, Atl. Fische, 1828, 39. 



Dascyllus aruanus, Cuv. & Val,, Hist. Nat. des Poiss., v, 1830, 434. — Gunthbe, Cat. 

 Fish., iv, 1862, 12. 



Chcetodon araneus, Bennett, Fish of Ceylon, 1837, pi. 17. 



Tetradrachmum arcuatum, Cant., Mai. Fish., 241. 



Body with three black cross-bandSj extending on the dorsal and anal 

 fins ; the first descends obliquely from the commencement of the spinous 

 dorsal, through the eye, to the chin, leaving a round, greyish space be- 

 tween the eyes ; the second band is bowed, and extends from the middle 

 of the spinous dorsal to the ventral fins ; the third from the posterior 

 part of the soft dorsal to the anal fin. Ventrals black; caudal white. 

 Anus black. 



CHEOMIS LEPIDURUS, {G. & V.) Streets [No. 15116J. 



HcUasks lepidurus, Cuv. & Val., Hist. Nat. des Poiss., v, 1830, 498. — Gijnther, Cat, 



Fish., iv, 1862, 63. 

 Heliastes frenatus, Cuv. & Val., op. cit., v, 1830, 498.— Gunther, op. cit., iv, 1862, 62. 



D. i|. A j%. L. lat. 27. L. trans. ^. 



Height of the body is one-half of the total length (without caudal), 

 and the length of the head is contained about three times in the same. 

 But one distinct series of conical teeth. The diameter of the eye longer 

 than the snout, and is contained about two and two-thirds times in the 

 length of the head. Caudal fin forked, and its basal half scaly. Ceru- 

 lean ; silvery on the breast and lower part of the head ; a bluish-white 

 streak from the eye to the snout ; fins minutely punctate ; pectoral yel- 

 lowish, a black spot in the axil above. 



One specimen, larger than the others (1.20 inches), of a brownish- 

 metallic luster, with some scattered blue spots on the sides. 

 Bull. N. M. No. 7—7 



