THE LEPTOCEPHALUS OF THE AMERICAN EEL. 
89 
between nostrils about equal to pupil; eye 5.33 in head; pectorals none; a group of pigment cells on 
top of head and a similar group below gill opening, an irregular row of spots along ventral side of 
abdomen, a more regular row of smaller spots along base of dorsal and anal fins. Segments 96 + 41. 
We take pleasure in associating with this species the name of Dr. Theo. Gill, the first to express 
the conviction (Proceedings Philadelphia Academy of Natural Sciences, 1864) that a Leptocephalus is 
the larva of an eel. 
Leptocephalus strommani, sp. nov. Figs. 8, 8a, 8 b. 
Type, one specimen 61 mm. long. Albatross station 2596. 
This species is evidently closely related to L. latus. It differs from that species chiefly in the posi- 
tion of the anus and the folding of the posterior section of the alimentary canal. The body is not 
so deep nor so suddenly expanded behind the nape, tapering instead rather evenly in front and behind. 
Its greatest depth is near the anus and is 7.5 in the length, and the tail is rounded, without a distinct 
caudal, but with the middle rays longer than in L. latus. The head is about 15.5 in length. The lower 
jaw is distinctly shorter than the upper, the profile rounded; eye medium, about 5.5 in head, 1.6 in 
snout; nostrils remote by a distance about equal to the diameter of the eye; pectorals not developed; 
a group of pigment cells in the gular region; no other pigment cells about the head; a series of pigment 
cells around the edge of the body, those in the abdominal region above the alimentary canal, except 
along its anterior third, where they are along the ventral surface; no color on body. Segments 70 + 71. 
We take pleasure in dedicating this species to the author of “ Leptocephalids in the University 
Zoological Museum at Upsala,” Dr. Strdmman. 
Leptocephalus morrisii Scopoli = Leptocephalus conger. Figs. 9, 9a, 95; 10, 10a, 105. 
One specimen 86 mm. long. Albatross station 2588. ,0 
Body gradually tapering from the head to behind the anus, where the depth is 10.33 in the 
length; fins very low; rayed dorsal beginning four segments in front of the anus; tail pointed; head 
pointed; jaws equal; profile nearly straight; eye 1.6 in snout, about 5 in head; nostrils approximated; 
pectoral well developed; three or four pigment cells over the eye; two chromatophores below the 
pectoral; a series of eight pigment spots above the alimentary canal; a pigment spot beneath the 
alimentary canal opposite the second one above; a row of pigment cells along the base of the anal, 
beginning about two segments behind anus and extending to caudal; several chromatophores at base 
of caudal and two at base of dorsal near tail; none at base of any other dorsal rays or along the back; 
sides with a series of linear spots on the myocomma beneath median line; segments 69 + 73. 
