422 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. Ll«c<5. 



ductus, from which it strikingly differs iu its bright leiuou-yellow legs, 

 iii its shorter and less produced abdomen, and iu other less obvious 

 characters. But two other 2 's were bred, so that the $ is unknown. 



Finally, I have reared a single Microgaster from straws infested with 

 Hessian Fly, but as there is uoubt about its parasitism on this insect I 

 omit consideration of it for the present. 



DESCRIPTION OP LEPTOPHIDIUM CERVINUM AND L. MARMORA- 

 TUM, NEAAT PISHES FROM DEEP "WATER OPP THE ATLANTIC 

 AND GULP COASTS. 



By O. BROWN OOODE and TARLETON 0. BEAJV. 



Leptophidium cervinum, n. s. 



The type (ISTo. 28764, U. S. National Museum), an individual 262'"™ 

 iu length, was taken at " Fish Hawk " station 941, latitude 40° 01' N., 

 longitude 09° 56' W., at a depth of 76 fathoms. 



Description. — Body elongate, slender, its greatest height (25™™) 10^ 

 in its total length. 



Head slender, somewhat compressed, its length (40'"'") 6^ in total 

 length. Interorbital area broad, convex, its width equal to the length 

 of the snout and 5§ in head's length. Snout sharp, conical, armed with 

 a short but sharp spine, and somewhat overhanging the mouth. Eye 

 circular, its diameter (10'"'^) 4 in head's length, and much exceeding 

 the length of the snout. Maxilla extending nearly to the vertical 

 through the posterior margin of the orbit, its length (15""") three-eighths 

 of head's length. Mandible extending behind the same vertical, its 

 length (18™™) equal to that of head without its postorbital portion. 

 Jaws, vomer and palatines with narrow bands of villiform teeth, some 

 of which are noticeably enlarged {not movable). Pseudobranchige pres- 

 ent. Gill-rakers short, 8 below angle of first arch, 4 of which are ru- 

 dimentary, the longest (2™™) 5 in diameter of eye. (In L. profundorum 

 the gill-rakers are slenderer and longer, though about equally numerous 

 on the first arch.) 



Scales in about 11 rows from the origin of the dorsal to the median 

 line of the body. 



Ventrals with length (13™™) 3 in that of head. 



Dorsal origin far back, at a distance from the snout (55'"™) 4f in 

 total length ; at a distance from the eye equal to head's length. (In L. 

 profundorum this distance is two-thirds of the head's length and the first 

 ray of the dorsal is nearly over the middle of the extended pectoral; in 

 L. cervinum, over its tip, or nearly so.) 



Anal origin with distance from snout (84™™) 3 in total length. Length 

 of pectoral (19'"™) 2 in head's length and 13 to 14 in that of body (10 in 

 X. marmoratum, 11 in L. profundorum). 



