708 American Work in the Department of (September, 
In the September Naturatist (p. 674), Mr. J. A. Ryder de- 
scribes the course of the intestine in Ostrea virginiana, which he 
found to have but one complete turn upon itself, and in the 
course of its (dorsal) flexure, to pass almost directly over the 
mouth, and to be provided with a pair of internal longitudinal 
folds. 
Brooks in the American Yournal of Science (Oct., 1880, p. 288) 
has a short article on the homology of the Cephalopod siphon 
and arms, in which he concludes that they are neither homolo- 
gous with the velum nor the foot, but are independent devel- 
opments. 
In the Anniversary Memoirs of the Boston Society of Natural 
History (1880), Brooks contributes a paper on the “ Develop- 
ment of the Squid (Loligo peali Lesueur),” containing twenty- 
two pages and three plates. In this article he observes that 
while the squid embryo fails to give us any information as to how 
a typical mollusk has been modified to convert it into a Cephalo- 
pod, or the transformations undergone during the process, it 
nevertheless clearly shows the fundamental similarity of type 
which subsists between it and other Mollusca. 
In last year’s record allusion was made to Professor Verrill’s 
“Cephalopods of the north-eastern coast of North America,” 
Part 1 of which, including the gigantic squids and their allies, 
has since appeared in the Transactions Connecticut Academy of 
Sciences, v, pp. 178-257, with fourteen plates. Much of the 
material in this paper has been the subject of preliminary M- 
tices; Stenoteuthis n. g. for Architeuthis megaptera Verrill, and 
a large Bermudan squid, perhaps Om. pteropus Stp. ; and Les- 
- toteuthis for A. kamschatica Midd., from the North Pacific, are 
the only absolutely new names proposed here, but a large array 
of new facts, a thorough digestion of previous literature, 4 T 
vision of the genera and a satisfactory illustration of the several 
species as far as known, give to the paper a monographic char- 
acter. The principal among the species treated of and figured, 
are Architeuthis harveyi, hartingti and princeps, Stenoteuthis 
megaptera, [fistioteuthis collinsit and Enoploteuthis hartingti, all 
of Verrill; Architeuthis dux and monachus of Steenstrup ; and 
Onychoteuthis robusta Dall, the last being from the Aleutian 
islands. The paper will form the standard of reference for this 
interesting subject. : : 
