410 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Though also confined to shallow water, this form is not (as the 
typical pclliicidum appears to be) limited in its northward distribution 
by Cape Cod. The collections contain colonies which, if correctly 
labeled, are from the Isles of Shoals, N. H., and others from a tide- 
pool on Ten Pound Island, near Gloucester, Mass. At Barnstable, 
]\Iass., in Cape Cod Bay, Professor Verrill found it abundant. It is 
very abundant in summer at Wood's Hole, Mass., and also at Vineyard 
Haven, Mass., on the piles of wharves, though colonies growing in 
such situations do not as a rule attain as large a size as those growing 
on the bottom. In ^'ineyard Sound, it is found in from 4 to 12 fathoms 
and is connnon on rocky bottoms, forming large and massive colonies 
sometimes of nearly hemispherical form, as already described. There 
is also a small colony from Station 2576 (off southern Massachusetts, 
N. lat. 41° 15' 30", W. long. 68° 16', 18 fathoms, coarse white sand, 
September 4, 1SS5) ; and there are good-sized colonies from Buzzard's 
Bay, Mass.; Noank, Conn.; off Stonington, Conn., 4 to 5 fathoms; 
Peconic Bay, Long Island; and others labeled " Long Island Sound." 
Davenport (1898) records it from Cold Spring Harbor, L. I. 
As far as the writer is aware, it has not been recorded from points 
farther south. It is perfectly distinct from the two species of Amarou- 
cium found at Bermuda, though the structure of the zooids shows it to 
be a near ally of one of them (.4. exile Van Name). This Bermuda 
species, however, forms only very small button-shaped colonies, and 
has a much more transparent test, smaller zooids with more rows of 
stigmata, and generally few^er (though sometimes over 20) ridges on the 
stomach wall than the New England species. 
Amaroucium glabrum Verrill. 
Text-fig. 24; PI. 35, fig. 2. 
1871. Amouroucium glabrum Verrill, Amer. Joiirn. Sci., ser. 3, vol. 1, p. 288, 
fig. 20-22. 
1872. Amouroucium glabrum Verrill, Amer. Journ. Sci., ser. 3, vol. 3, p. 211. 
1874. Amaroecium glabrum Verrill, Amer. Journ. Sci., ser. 3, vol. 7, pp. 39, 
40, 43, 132, 133, 413, 504. 
1874. Amaroecium glabrum Verrill, Proc. Amer. Assoc. Adv. Sci., vol. 22, 
1873, pp. 352, 355. 
1874. Amaroecium glabrum Verrill, 6th Ann. Rept. Peabody Acad. Sci., 
Salem, pp. 59, 60. 
1875. Amaroecium glabrum Verrill, Amer. Journ. Sci., ser. 3, vol. 10, p. 41. 
