222 PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



Family ELEOTRIDAE 



Eviota personata Jordan and Thompson 



Of this species, known hitherto from the type only, 10 specimens were taken, 

 and others seen, mostly under the overhanging flank of a great isolated coral 

 head on the eastern margin of the bank just off the Laboratory. They swam 

 about freely in the shadow under the coral, although to escape pursuit they fled 

 to its surface to "creep" about or hide in its crannies. 



The largest male taken was 31 mm., the largest female 37 mm. long, though 

 sexual maturity is attained in the female at 23 mm., or possibly less. 



The 2d dorsal spine in the male reaches the base of the 3d ray of second dorsal, 

 and in the female it reaches the second dorsal only. The male genital papilla is 

 long and pointed, and that of the female broad and short, covered with small 

 papillae. The caudal fin in both sexes is slightly emarginate. D. VI-I,io or 11; 

 A. I,io or 11. 



In nature these fish were observed only in the color phase described below; in 

 the laboratory the light stripes mentioned may vanish, as they do at death. After 

 death the tissues become opaque and the pattern appears as in the original de- 

 scription (Jordan and Thompson, Bull. U. S. Bur. Fish., vol. 24, 1904 (1905), 

 P- 251, fig. 3). 



The superficial color is little developed. Tip of snout above and before eye with 

 a few dark pigment cells, extending ventrally slightly below orbital margin; 

 cheek below this pigment pale, above it dusky chromatophores, more sparsely 

 distributed dorsally, extending to posterior margin of preopercle, a few forming 

 a short, poorly defined horizontal line on pectoral base; a few red color cells on 

 conjunctiva above; others, inconspicuous and widely scattered over body, tinge - 

 ing it slightly with rose; a black line, slightly oblique and of width of pupil, ex- 

 tending through eye; scarlet on meninges, peritoneum, and vertebral axis, and in 

 the median plane just beneath it from abdominal cavity to base of caudal; a 

 silvery line behind pectoral base, bordered ventrally with scarlet, apparently con- 

 tinuous posteriorly with a median light stripe between the subvertebral red and 

 a series of dark points along base of anal; a dark spot on ventral surface before 

 anus. This clearly is a fish whose pattern is mostly internal, in life visible only 

 through its transparent bone and muscle. W. H. L. 



The collection contains 5 specimens, 35 to 42 mm. long. This species has been 

 described and figured as having no scales on the head, nor in advance of the 

 dorsal, and none on base of pectorals and breast. This indeed may be true of the 

 young, but in the adult the nape to interorbital space, and the cheeks, gill covers, 

 and breast are fully scaled. 



Known only from Tortugas, Florida. S. F. H. 



Ioglossus calliurus Bean 



Known hitherto only from the Snapper Banks off Pensacola, Florida, in rather 

 deep water. It is not uncommon at Tortugas. As it is a burrowing form, or one 

 at least which shelters itself in holes in the bottom, it fails to be seen or caught in 



