i94i CATALOGUE OF FISHES OF TORTUGAS !§! 



light. The first clutch discovered composed a smear several inches in diameter on 

 the under face of a head of Orbicella annularis below the mantle of living 

 polyps. Later in an Acropora thicket, with many others, eggs of one lot were 

 found in three discrete patches of about 3 by 2 inches on the under side of as 

 many lateral branches springing together from one main stem. 

 West Indies to Florida. . W. H. L. 



Pomacentrus xanthurus Poey 



Pomacentrus xanthurus Poey, Memorias, vol. 2, i860, p. 190 — Cuba. 



Pomacentrus flaviventer Troschel, in von Miiller, Reisen in den Vereinigten Staaten, 

 Canada, und Mexico, vol. 3, 1865, p. 633 — Atlantic Ocean. 



Dr. Longley prepared no discussion, and I have found no notes definitely 

 referable to it. However, he indicated in his copy of Jordan, Evermann, and 

 Clark's Chec\ list (1930) that it belongs to the Tortugas fauna, as explained in 

 the discussion under the generic name. Virtually positive evidence that he ob- 

 served it at Tortugas is found in the discussion under Pomacentrus planijrons 

 (p. 180), where he compared the eggs of that species with those of the present 

 one. 



Some further information concerning this species is to be gained from com- 

 parison of the color with that of planijrons and leucostictus (p. 180) and of 

 adustus (p. 179). Information concerning the number of scales with pores in the 

 lateral line and on the preopercle appears in the discussion of leucostictus (p. 

 182), and concerning the proportionate depth of the body under adustus (p. 179). 



If I succeeded in identifying the specimens in the collection correctly, this 

 species is close to planijrons, from which it differs chiefly in color and in the 

 more slender body, though there seems to be overlapping. 



In the discussion of P. adustus (p. 178) Dr. Longley said of the type of P. 

 flaviventer, which he regarded as a synonym of this species, "The spotting with 

 bluish white on the head and below the dorsal fin, the dark saddle on caudal 

 peduncle, and the brown color above, passing gradually to yellow below, iden- 

 tify it." 



Atlantic coast of Mexico, West Indies, and Florida. S. F. H. 



Pomacentrus leucostictus Mtiller and Troschel 



Pomacentrus leucostictus Miiller and Troschel, in Schomburgk, Hist. Barbados, 1848, 



p. 674 — Barbados. 

 Pomacentrus atrocyaneus Poey, Memorias, vol. 2, i860, p. 190 — Cuba. 

 Pomacentrus analis Poey, Reportorio, vol. 2, 1868, p. 327 — Cuba. 

 Pomacentrus nepenthe Nichols, Amer. Mus. Nov., No. 26, 1921, p. 1, fig. 1 — Bahamas. 



This is the commonest of Tortugas pomacentrids and has locally the widest 

 range of all. On Loggerhead reef it occurs almost everywhere except in coral 

 stacks and dense stands of Acropora, and it is one of the commonest fishes in tide 

 pools on Bird Key reef. 



This is a slighter fish than others with which it has tended most to be con- 

 fused. In 3 adult females the depth enters 2.25 to 2.28 times into standard length, 

 and in 3 males 2.31 to 2.34 times; scales with tubes in lateral line rather more 



