i 9 4i CATALOGUE OF FISHES OF TORTUGAS 273 



synonym. Of Metzelaar's species only 2 specimens are known, both from 

 Curasao, both in Amsterdam. Both have the highly spinose occiput as in 

 variegata; both have the fin formulas D. XXI,i4; A. 11,23; and in both the orbital 

 cirri are small. The supposed differences in dentition between variegata and 

 spinosa constitute an oversight by Metzelaar, as in the type of spinosa there are 

 smaller teeth in either jaw in an anterior patch within the outer row, and the 

 vomer and palatines are dentate as he stated. The color pattern is less contrastive 

 than in Haitian material, but related species are so highly changeable that one 

 must accept this with hesitation as evidence of specific difference. W. H. L. 



No specimens were found in the collection in good enough condition to 

 identify positively as this species. 



Dutch West Indies, Haiti, and Tortugas, Florida. S. F. H. 



Emblemariopsis Longley 



Emblemariopsis Longley, Carnegie Inst. Wash. Year Book No. 26, 1927, p. 222 (E. diaphana 

 Longley). Longley and Hildebrand, Carnegie Inst. Wash. Pub. 517, 1940, p. 269. 



Emblemariopsis diaphana Longley 



Emblemariopsis diaphana Longley, Carnegie Inst. Wash. Year Book No. 26, 1927, p. 223 — 

 Tortugas, Florida. Longley and Hildebrand. Carnegie Inst. Wash. Pub. 517, 1940, 

 p. 269, pi. 1, fig. 1. 



Emblemaria pandionis Evermann and Marsh 



Widely distributed at Tortugas, ranging outward from little below low water. 

 During its breeding season, at least, it is found most abundantly on clean 

 gravelly bottom littered with coral fragments bored by Lithodomus, or other- 

 wise prepared to shelter it. A dozen or more of the fish may sometimes be found 

 within a radius of 4 or 5 yards. 



The type and only specimen known to Evermann and Marsh (Bull. U. S. Fish 

 Comm., vol. 20, pt. 1, 1900 (1902), p. 318, fig. 104) is a female. This fish has D. 

 XX,i5; A. 11,23; V. 1,3, though the original description gave D. XVII, 18; A. 

 11,23; V. 1,2. Teeth on vomer weak, strong ones in a single series on palatines; 

 dorsal and anal fins connected with caudal peduncle by a membrane reaching 

 base of the reduced rays. 



In 20 Tortugas specimens the dorsal fin has XX to XXII, 15 to 17 rays, and the 

 anal rays vary from 11,22 to 24, the commonest fin formulas being D. XXI, 16; 

 A. 11,23. 



The sexual dimorphism is distinct. The male attains a larger size than the 

 female, and the web of the ventral fin, behind the 2d ray in particular, is very 

 much broader, the fin being foliaceous rather than doubly filar as in the female. 

 The dorsal fin in the male also is much the greater, with its 1st spine when de- 

 pressed reaching the base of the 13th, but in the female only the base of the 7th. 

 The male's ocular cirrus reaches beyond end of snout, and the female's scarcely 

 to posterior nostril. There is a great difference also in the structures about the 

 vent, as in the male the skin is plaited, the folds simple and only half as high as 



