484 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
arrangement of the spirals is less regular and they do not appear to 
commence near particular transverse vessels as in that form. Else- 
where than on the infundibula the stigmata are usually irregularly 
(often very irregularly) curved, and frequently rather short. They 
often tend to form rudimentary spirals and infundibula. This is 
particularly the case between the last fold and the endostyle. 
Intestinal loop not much bent up toward the dorsal side. Its 
branches are not widely open, but come together only gradually and 
at a considerable distance from the reflected end. The stomach walls 
are developed by means of very narrow and deep irregular plications 
into a glandular organ of large bulk. 
Kidney a short broad sac of somewhat oblong form in the usual 
position on the right side. 
Gonads placed as usual dorsal to the intestinal loop and the kidney 
respectively. Each contains a moderately elongated phial-shaped 
ovary which is densely crowded with small eggs. The male portion 
of the organ consists of small lobed glands of the usual type which do 
not extend out much beyond the border of the ovary, but lie between 
it and the mantle. 
The only good specimen of this species in the collection was collected 
at Station 2449 (N. lat. 46° 37', W. long. 49° 50' 30", 39 fathoms, 
broken shells) at the extreme eastern edge of the Grand Banks. 
Another but poorly preserved specimen also comes from the Banks 
of Newfoundland, but doubtless from some other place, having been 
brought in by fishermen. 
Caesira pannosa (Verrill). 
PL 47, fig. 21-24; PI. 48, fig. 25; PL 71, fig. 148; text-fig. 9. 
1871. Molgula pannosa Verrill, Amer. Journ. Sci., ser. 3, voL 1, p. 55, fig. 2. 
1872. Molgula pannosa Verrill, Amer. Journ. Sci., ser. 3, vol. 3, p. 211. 
1874. Molgula pannosa Whiteaves, Amer. Journ. Sci., ser. 3, vol. 7, p. 5. 
1874. Molgula pannosa Verrill, Proc. Amer. Assoc. Adv. Sci., vol. 22, pp. 
352, 355, 363, 368. 
1874. Molgula pannosa Verrill, Amer. Journ. Sci., ser. 3, vol. 7, pp. 39, 43, 
46, 413. 
1891. Molgula pannosa Herdman, Journ. Linn. Soc. London, ZooL, vol. 23, 
p. 569. 
1901. Molgula pannosa Kingsley, Proc. Portland Soc. Nat. Hist., vol. 2, 
p. 182. 
1901. Molgula pannosa Whiteaves, Geol. Survey Canada, pub. no. 722, p. 270. 
