8 
are common at station 4, and a single specimen from station 5 may be referred 
here. The species occurs off Greenland and off the north coast of Europe in 
cold water. 
The species is shorter, thicker, and fewer-chambered than R. scorpiurus, 
the chambers fewer and longer than in R. pilulifer, and different in the material 
of the wall and in the number and shape of the chambers from R. dilocularis. 
It seems to be a species of cold waters and moderate depths. 
Goés figures this species under the name of R. scorpiurus in the reference 
noted above. The specimens were from the Greenland Sea in 35-215 meters, 
and from the Skagerack in 250 meters. 
GENUS HAPLOPHRAGMOIDES CUSHMAN, 1910. 
Haplophragmoides canariensis (d’Orbigny). 
A single specimen only from station 3 gives the only record for this species 
in the collection. It has been already recorded from the Canadian Arctic 
Expedition and from other Arctic areas, as well as in temperate regions. It is 
evidently not the same as that found in shallow, tropical waters. 
GENUS AMMOBACULITES CUSHMAN, 1910. 
Ammobaculites cassis (Parker). 
Lituola cassis Parker, in Dawson, Canad. Nat., vol. 5, 1870, pp. 117, 180, fig. 3. 
Haplophragmium cassis H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9. 
1884, p. 304, pl. 33, figs. 17-19.—Goés, K6ngl. Svensk. Vet. Akad. Handl., 
vol. 25, No. 9, 1894, p. 24, pl. 5, figs. 152-157.—Flint, Rep. U.S. Nat. Mus., 
1897 (1899), p. 275, pl. 19, fig. 4—Awerinzew, Mem. Acad. Imp. Sci. St. 
Petersburg, ser. 8, vol. 29, No. 3, 1911, p. 20. 
Ammobaculites cassis Cushman, Rep. Canadian Arctic Exped., vol. 9, pt. M, 
1920, p. 6m, pl. 1, fig. 3; Bull. 104, U.S. Nat. Mus., pt. 2, 1920, p. 63, pl. 
12, fie. 5. 
At one station (4), specimens were fairly common. The specimens are mostly 
fairly broad, but some more slender ones also occur, but as a rule, these seem to 
be young. There are a few specimens also from stations 2 and 5. 
A. cassis is one of the species characteristic of cold waters. It ranges south- 
ward as far as Cape Cod on the Atlantic coast, thence northward along the 
New England coast, into the mouth of the St. Lawrence, Gaspé Bay, thence 
westward into Hudson Bay, and is known from off Greenland, Spitzbergen, 
Nova Zembla, the Siberian Arctic, and from the Canadian Arctic. It also 
apparently is in cold waters in the North Pacific. The records are all in com- 
paratively shallow waters. 
GENUS TROCHAMMINA PARKER AND JONES, 1860. 
Trochammina rotaliformis J. Wright. 
Trochammina inflata (Montagu), var., Balkwill and Wright, Trans. Roy. Irish 
Acad., vol. 28 (Science), 1885, p. 331, pl. 13, figs. 11, 12. 
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