52 BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



off when specimens are dried, fairly smooth, with an abundance of 

 cement of a dark reddish-brown color; apertures at the end of very 

 short tubular necks, irregular or nearly circular in section; color fer- 

 ruginous, due to the dark reddish-brown color of the cement. 



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Fig. 57.— Ammosph.eroides distoma. x 50. a, afertural view; b, from side. 



Diameter 0.4-0.8 mm. 



Distribution. — Specimens of this species were fairly common at one 

 Albatross station, D5018, in the sea of Okhotsk off the southern end 

 of the eastern coast of Sakhalin Island, in 82 fathoms. 



Type-specimen. — No. 8258, U.S.N.M., from the above station. 



Genus VERRUCINA Goes, 1896. 



Verrucina Goes (type, V. rudis Goes), Bull. Mus. Comp. Zool., vol. 29, 1896, 

 p. 25.— Rhumbler, Arch. Protistk., vol. 3, 1903, p. 232. 



Description. — Test adherent, irregular-ovoid in shape; interior di- 

 vided into irregular chamberlets, wall composed of sand grains, rough 

 externally, aperture usually double, situated in the depressed area 

 at the center of the dorsal side. 



This genus of Goes contains a single species. 



VERRUCINA RUDIS Goes. 



Verrucina rudis Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 25, pi. 1, figs. 15, 

 16.— Rhumbler, Arch. Protistk., vol. 3, 1903, p. 233, fig. 62 (in text). 



Description. — Test adherent to Rhabdammina, the basal portion 

 spreading over the surface of the tube, the other portion rising up 

 into an irregular-ovoid shape, top flat, depressed in the center, cavity 

 a single chamber divided irregularly into chamberlets, wall fairly 

 thick, aperture single, but usually double at the bottom of the sunken 

 area, color dark gray. 



Length averaging about 2 mm. 



Distribution. — Known only from the type station, Albatross station 

 D3419, off the west coast of Mexico in 772 fathoms. I have exam- 

 ined the five specimens in the material selected by Goes as well as a 

 few other specimens found in the original material from this station. 

 Some of the specimens are much higher than is shown either in Goes's 

 figure or in our figure. One specimen is somewhat higher even than 



