[129] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 
bases of the gills, extending forward and having an oblique, oblong open- 
ing (op, op’) on the outside of the anterior ends; the posterior ones (xa, 
xx’) are behind the gills and cover the branchial auricles; the oblique, 
slit-like opening is on the outer side of the posterior ends; the gland on 
the left side (vx’) was mutilated; the posterior vena cava in front of r/ 
passes through the center of the posterior gland (xz). The ovary (ov) 
is a very long organ, attached to the stomach (s) and to the sides of its 
long cecal appendage; it extends far backward to near the tip of the 
tail, occupying the concavity of the pen (p); it consists of great num- 
bers of small clustered folicles; connected with its anterior end, and 
attached to the stomach, there is a convoluted tube, probably an oviduct, 
not well shown in the figure; connected with and opening into the intes- 
tine, near its origin, there is a firm, roundish organ, with internal lamelle, 
perhaps a part of the stomach or gizzard (fig. 1, s). The stomach was 
much mutilated, so that its form could not be certainly made out. What 
appears to have been a portion of the stomach, or else the anterior part 
of the cecal appendage (s,s), had a cavity lined with numerous longitudi- 
nal folds; from this a very long, saccular, ccecal appendage, longitudinally 
plicated within (s’’), runs back, along the ovary, into the caudal cavity of 
the pen. The esophagus had been destroyed. The intestine (I, h) is 
very long and slender, internally longitudinaliy plicated, and externally 
covered along nearly its whole length, on one side, by close groups of 
small glandular folicles (l, 1); the terminal portion is closely attached to. 
the ventral edge of the small, smooth, firm, compressed, oblong-ovate 
liver (i), and its free, stout anal end (h) is provided with two slender, 
tapering cirri. The ink-sac (i) ts small, pyriform, between the front 
part of the liver and the rectum. 
The gills (g,g) are small and short, situated far forward, and con- 
nected to the ventricle of the heart (H) by long afferent vessels (bo); 
the branchial auricles (au, aw) are rounded, without terminai capsules ; 
the ventricle of the heart (#), as preserved, is small and four-lobed, the 
largest lobe directed forward and passing into the anterior aorta. The 
condition of the specimen did not permit the circulation to be much 
studied. The two large, fusiform, cellular organs (r’, r’) are probably 
renal in nature; their interior is filled with large, irregular cavities or 
lacunz, which appear to be connected with the posterior vene cave (ve’’). 
TAONIUS Steenstrup (restricted). 
Loligo (pars) Lesueur, Journ. Philad. Acad., vol. ii, p. 96, 1821. 
Loligopsis (pars) D’Orbigny, Céph. Acétab., p. 320 (non Lamarck). 
Gray (pars), Catal. Moll. Brit. Mus., vol. i, p. 39, 1849. , 
Taonius (pars) Steenstrup, Oversigt Kgl. Danske Vidensk. Selsk. Forh., 1861, pp. 70, 
85. 
Taonius Verrill, Trans. Conn. Acad., vol. v, p. 306, Feb., 1881. 
This genus seems to bear about the same relation to Desmoteuthis that 
Rossia does to Sepiola. Its relations with Loligopsis and Leachia have 
already been discussed (pp. 301, 302). The body is short-pointed pos- 
