9 
Trochammina rotaliformis J. Wright, in Heron-Allen and Earland, Journ. 
Roy. Micr. Soc., 1911, p. 309.—Heron-Allen and Earland, Proc. Roy. Irish 
Acad., vol. 31, pt. 64, 1913, p. 52, pl. 3, figs. 11-13.—Cushman, Bull. 104, 
Les: Nat. Mus: -pt. 2, 1920; p. 77, pl. 16, figs. 1,2. 
This is one of the commonest species in the collection. It occurs at all but 
one of the stations, and at station 5 in great numbers. The specimens are very 
similar to the original figures given by Balkwill and Wright, much more so than 
those given by Heron-Allen and Earland from the Clare Island region. 
It has not previously been recorded from the western Atlantic and I failed 
to find it in the Albatross dredgings from Newfoundland southward. It may bea 
species of shallow water. Its occurrence in Hudson Bay is an interesting one. 
FAMILY TEXTULARIIDAE 
GENUS VERNEUILINA D’ORBIGNY, 1840. 
Verneuilina advena Cushman, new species. 
Test minute, elongate, triserial, tapering, broadest near the apertural end, 
composed of as many as twenty-five chambers, inflated; sutures distinct and 
depressed; wall arenaceous, but very smoothly finished on the exterior, the 
amount of cement and fine material being proportionately large; aperture in a 
deep depression at the junction of the last of the three series of chambers; colour 
reddish-brown, the last-formed chamber often white. 
Length usually not over 0.3 mm. 
At four of the stations this minute species has occurred, and at station 3 in 
some considerable numbers. It is known from the Canadian Arctic Expedition 
where I recorded it as V. polystropha (Rep. Canadian Arctic Exped., vol. 9, 
pt. M, 1920, p. 8m, pl. 1, fig. 5). I have also found it off our eastern Atlantic 
coast, and it is known from other regions to the north. It is probably recorded 
under V. polystropha from various localities. Verneuilina scabra (Williamson) 
_ (V. polystropha in part) does not so far as I have seen, occur in the western 
Atlantic. 
Heron-Allen and Earland have recently published a paper (Proc. Roy. Irish 
Acad., vol. 35, No. 8, 1920) in which they note and figure this species, referring 
it to V. polystropha, and speaking of it as a dwarf form as a result of “‘nanism.”’ 
Inasmuch as the larger typical form does not seem to occur on the American 
coast, and this smaller species is widely distributed here, it would seem that 
the two are distinct. Beside the difference in distribution there are very definite 
characters in the size, and especially the characters of the wall which distinguish 
the two. 
FAMILY LAGENIDAE. 
GENUS LAGENA WALKER AND Boys, 1784. 
Lagena globosa (Montagu). 
‘“‘Serpula (Lagena) laevis globosa’’ Walker and eee Test. Min., 1784, p. 3, 
pes. figs-8: 
141 
