A. E. Terrill — Earth American Cephalopoda. 
393 
Eotes on the visceral anatomy of the male. 
In its anatomy this species resembles Ommastrephes. The branchial 
cavity is very large, extending back nearly to the base of the fin ; 
the median longitudinal septum is far back, gills very long, but not 
reaching the margin of the mautle, attached nearly to the tip; its 
structure is like that of Ommastrephes. Liver orange-brown, very 
large, massive, nearly as in Ommastrephes, but larger, extending back 
farther than the base of the fin. The circulatory and renal systems 
are similar to those of Ommastrephes , in most respects. The posterior 
aorta goes back some distance before it divides, about opposite the 
base of the fin, into the mediowentral artery of the mantle, and a 
caudal artery. Two large ventral renal organs lie below and to each 
side of the heart, and blend together, in front of it, into a large mass, 
which has a pointed lobe extending forward ; posteriorly two lobes 
extend back, as usual, along the posterior venae-cavae. The first 
stomach is rounded and the second stomach is a large, long-pyriform 
sac ; the intestine is long, the ink-sac is long-pyriform. The repro- 
ductive organs are small, indicating that the specimen is still imma- 
ture, and probably only one year old. The spermary or “testicle” 
is small (length 18 Iura , diameters 2 mm and 4 miu ), flattened, tapering- 
backward, partly enclosed by the hooded portion of the pen, and 
with the anterior end attached laterally to the posterior end of the 
csecal lobe of the stomach. The prostate gland, vesiculae-seminales 
and spermatophore-sac are small ; the efferent duct is long and slen- 
der, extending forward over and beyond the base of the left gill. 
Moroteuthis, gen. nov. 
Type. Onychoteuthis lor Lestoteuthis T) robusta, this vol.. pp. 246-250. 
Moroteuthis robust i Verrill. Report of the U. S. Fish Commission for 1S79. pp. 
[65-71], pis. 13 and 14, 1881. 
After referring the type of Lestoteuthis to Gonatus (riot of Gray), 
Professor Steenstrup admits that the gigantic species, L. robusta V., 
is the representative of a distinct genus, to which he would restrict 
the name Lestoteuthis. 
But Z. Kamtschatica was specially given by me as the type of Les- 
toteuthis, and the characters of the genus were derived entirely 
from that species, while Z. robusta was referred to it only with ep-eat 
doubt, owing to the fact that its armature is almost unknown. 
Therefore, if Lestoteuthis hereafter becomes a complete synonvm, it 
should be dropped, when it cannot be kept for its special type-species. 
For the gigantic species I have proposed (Am. Jour. Sci., xxii, p. 
298, Oct., 1881,) a new genus, Moroteuthis. 
