EXPLORATION OF ALASKA. 205 
with rather strong longitudinal folds; the pylorus (fig. 17) in the 
neighborhood of the cardia. ‘The intestine advancing from the stom- 
ach to the fore-end (fig. 17) of the liver, in this part about 10.0 mm. 
long; forming a knee and retrograding to the anal nipple in a length 
of 23.0 mm. The contents of the stomach were indeterminable animal 
matter, mixed with some diatomacez. 
The liver 20.0 mm. long by a height of 10.0 mm. and a breadth of 
about 12.0 mm.; the posterior end rounded; a little more than the an- 
terior half of the under side obliquely flattened (by the anterior genital 
mass) showing the cardiac end of the cesophagus and the root of the 
hermaphroditic duct. On the anterior part of the upper surface is a 
cleft for the stomach and for the biliary sac; the color of the surface 
and of the substance of the liver is grayish-yellow. The biliary sae 
(fig. 17e) lying before the stomach, on the right side of the intestine, 
large (as the stomach), somewhat flattened, grayish, of rounded out- 
line and about 4.5 mm. largest diameter; the contents, as in the 
stomach. 
The heart as usual. The sanguineous gland whitish, entirely cover- 
ing the nervous system, about 6.0 mm. long, by a breadth of 4.5 and a 
heigit of only 1.0 mm. 
The hermaphroditic gland yolk-yellow, covering the upper side of 
the liver with a thick layer; in its lobes large ojgene cells and masses 
of zo!sperms. The anterior genital mass large, about 14.0 mm. long 
by a breadth of 9.0 and a height of 11.0 mm., flattened and a litile ex- 
cavated on the left side, with an excavation on the fore side, the right 
side very convex. The hermaphroditic duct whitish, rather thin 
(diameter about 0.75-1.0 mm.), passing straight over the left side of 
the genital mass to its anterior end, without formation of any (distinct) 
ampulla. The first part of the spermatoduct whitish, forming several 
long windings on the upper part of the forepart of the mass and pass- 
ing into the yellowish (Pl. VI, fig. 18a) continuation; this, with its 
numerous coils, forms a large flattened layer on the fore-end of the 
right side of the mass; it then rather suddenly passes into a much 
thinner whitish continuation (fig. 185) about 6 mm. long, that slopes 
(fig. 18e) into the penis, which (retracted) was lying on the lowest 
anterior part of the right side of the mass. The penis was cylindrical, 
of the length of 11.0 mm. by a diameter of 1.5 mm.; the truncated, 
cylindrical, yellowish (under a magnifier nodulous) glans forming 
(Pl. V, fig. 13, 14) a prominence of the length of nearly 1.0 mm. in 
the vestibulum. This glans was partly covered on the outer side 
