26 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
T. erinacea n. 
Plate Il. Figs. 9, 10. 
It is with some doubt that I range this form in the above genus of Brady, 
although it agrees in some respects with 7’. papillata, except in the obsolete state 
of its orifices, which are not plainly visible in our form. Its surface is some- 
what wrinkled, tuberculated, and beset with short, closely arranged spines; 
sometimes the spines are more scattered, and very produced in length. The 
shape is usually globular, seldom ovoid; sometimes the test is provided with a 
short neck or shaft. Its color is usually gray-yellowish, sometimes whitish, 
with black specks, some of which may be orifices. The wall is more or less 
thin. The diameter seldom reaches beyond 0.25 mm. 
Pacific. 555-1879 fathoms; not rare. 
SACCAMMINA M. Sars. 
S. spheerica Sars. 
S. spherica M. Sars, 1868, Det dyriske Livs Udbred. i Havets dybder., Christiania 
Vidensk. Selsk. Hdl., 1868, p. 248. 
S. spherica Br., 1884, Chall. Rep., IX. p. 253, Pl. XVIII. Figs. 11-17. 
S. spherica Goiis, 1893, Arct. & Scandin. Foramf., Sv. Vet. Ak. Hdl., XXV. 9, 
p. 18, Pl. III. Figs. 16-18. 
Stout specimens and in a good lot of samples have been met with, not differ- 
ing in any respect from the North Atlantic form. 
Pacific. 660-995 fathoms ; not scarce. 
REOPHAX Mrrrt. 
R. scorpiurus Mrrrr. 
R. scorpiurus MrFrv., 1808, Conchol. Systeme, I. p. 330. 
Lituolina scorpiurus Gois, 1882, Retic. Rhizop. Caribb. Sea, Sv. Vet. Ak. Hdl., XTX. 
4, p. 186, Pl. XI. Figs. 406-409. 
R. scorpiurus Br., 1884, Chall. Rep., IX. p. 291, Pl. XXX. Figs. 12-17. 
R. scorpiurus Gois, 1898, Arct. & Scand. Foramf., Sv. Vet. Ak. Hdl., XX V. 9; 
p. 24, Pl. V. Figs. 158-163, Pl. VI. Figs. 164-169. 
The specimens brought home by the “ Albatross” are but few, and not quite 
typical. 
Pacific. 995 fathoms; pygmy, with very constricted sutures; scarce. 
Caribbean Sea. 210 fathoms. 
