20 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



peripheral margin thin, surface smooth; wall fairly thick, clearly per- 

 forate, prolocuTum rounded or often somewhat quadrangular. 



Length 0.18-0.54 mm., proloculum in rounded form 0.024-0.030 

 mm. in diameter, in quadrangular form 0.027-0.036 mm. high and 

 0.055-0.066 mm. in breadth. 



Distribution. — The distribution of this species is again in the Indo- 

 Pacific region, although it was not found by Millett in the Malay 

 Archipelago. It has been recorded from the Australian region, from 

 about the Fiji and Admiralty Islands, and from Mauritius. From the 

 Hawaiian Islands it was recorded on the coral reefs of Honolulu, 40 

 fathoms, by Brady, and from Albatross station H4017, in 305 

 fathoms, by Bagg. Rhumbler records it from shallow water at Lay- 

 san Island. I have noted specimens from two Nero stations off the 

 Hawaiian Islands, 2033 and 2071 , in 249 and 271 fathoms, respectively. 



This in its form and ornamentation is in many ways a rather unique 

 species. The occurrence of double tests has been noted by several 

 writers. 



TEXTULARIA APERTURALIS, new name. 



Textularia solila (Schwager), var. infiata Goes, Bull. Mus. Comp. Zool.^ vol. 29, 

 1896, p. 42, pi. 5, figs. 1-3. 



Description.— -Test tapering, triangular in front view, the initial 

 end acute and compressed, the later portion inflated, with high 



chambers; the end view broadly oval; 

 wall composed of very fine almost 

 amorphous material, smooth; aper- 

 ture a much elongated slit slightly 

 above the base of the inner margin 

 of the chamber, in adult specimens 

 divided in the median plane to form 

 two apertures; aperture often bor- 

 dered by a slightly projecting raised 

 rim; color white. 

 Length 1.45 mm. 



Distribution. — Goes described this 

 species from Albatross station D3375 

 in 1,201 fathoms off the west coast 

 of America. 



An examination of Goes's original 

 material does not seem to show the 

 reason for uniting this species with 

 Textularia solita (Schwager) even as 

 a varietal form. With its peculiar 

 inflated adult chambers and its tend- 

 ency to divide the aperture, it seems 

 to be a very distinctive species, and as infiata has already been used 

 in this genus, I propose the above name for this species. 



Figs. 34-35.— Textularia aperturalis. 

 34. X 30. 35, a, front view; 6, side 

 view; c, end view. X 20? (Fig. 35, 

 after Goes.) 



