DICEOLENE FILAMENTOS.V. 149 



from the snout to tlie ventrals is contained one and three fourths times in 

 that from ventrals to the first anal ray. Ventrals close together, at the 

 humeral sympliysis, each consisting of two rays closely bound together, 

 four fifths as long as the head. Scales small, deciduous, thin, flexible, 

 roughened on the exposed surface, covering head and body. A small anal 

 papilla. Air bladder rather large. 



Red or purple in life ; gill membrane, median line of belly, donsal, anal, 

 caudal, and a spot on the basal portion of the pectoral black, as also the 

 linings of mouth, gill chamber, and belly. 



Length of specimen described twelve inches. 



station. Latitude. Longituiie. 



3362 5° 56' N. 85° 10' 30" W. 



33G6 5° 30' N. 86° 45' W. 



3376 3° !)' X. 82° 8' W. 



3400 0° 36' S. 86° 46' W. 



Dicrolene filamentosa sp. n. 



Plate F,fy.l; Plate LXXV. fy. 3, Lat. Syst. 



Br. r. 8; D. 100-104; A. 84-90; V. 2; P. 14-18+0-11; C. 6; LI. 

 ca. 140. 



Body compressed, tapering rapidly, depth three fourths of the length 

 of the head, caudal region slender. Head nearly one fifth of the total 

 length, thick, deep, arched and convex on the forehead, interorbital space 

 twice the length of the eye, width of crown more than half the depth of 

 the head. Snout broad, blunt, once to one and one fourth times as long as 

 the eye ; chin slightly ascending forward. Mouth large, cleft extending 

 backward of the orbit ; maxillary reaching farther back nearly one diameter 

 of the eye, much expanded at the end. Tongue with margins free. Teeth 

 small, in narrow villiform bands on jaws, vomer and palatines. Vomerine 

 group small, on the forward extremity of the bone, wide!}' separated from 

 the palatines. Anterior nostril porelike, half way from the posterior to 

 the end of the snout, with a groove below and forward to the lip; posterior 

 near the eye. Eye medium, half as wide as the interorbital space, less 

 than the snout, hardly one sixth of the head. Opercular margins thin and 

 membranous ; spine weak. Preopercular spines three, small. Mucous sys- 

 tem well developed, pores large, cavities in the bones of the skull moder- 

 ate. Gills four, a slit behind the fourth, lamellae short. Gill rakers slender, 



