62 BULLETIN" 71, UNITED STATES NATIONAL MUSEUM. 



2,048 fathoms, all in the general region of Guam; Albatross D4949 

 in 110 fathoms and H4882 in 248 fathoms, off Japan. 



A transverse section fron Brady shows well the characteristic 

 doubly curving axis of the chambers as seen in the sectioned test. 



Genus HAUERINA d'ORBIGNY, 1848. 



Hauerina d'Orbigny (Type H. compressa d'Orbigny), Foram. Foss. Bass. Tert. 

 Vienne, 1846, p. 119. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 190. 



Description. — Test compressed with the early chambers milioline, 

 the later and greater portion of the test having the chambers arranged 

 in a planospiral manner, usually in the last formed coil at least with 

 more than two chambers in each whorl, surface smooth or orna- 

 mented ; aperture of a large number of small pores forming a sieve- 

 like plate, usually much longer than wide. 



The Miocene species described by Brady and the type of the genus 

 is a smooth species, with a thicker test than the recent species. It 

 is from the Miocene of the Vienna Basin. Reuss has described a 

 species from the Cretaceous as Hauerina antiqua, but it apparently 

 is not a true Hauerina. 



In recent waters the genus is apparently limited to the warmer 

 portions of the Pacific and Indian Oceans. 



HAUERINA BRADYI, new species. 



Plate 23, fig. 2. 



Hauerina compressa H. B. Brady (not H. compressa d'Orbigny) Rep. Voy. Chal- 

 lenger, Zoology, vol. 9, 1884, p. 190, pi. 11, figs. 12, 13.— Millett, Journ. 

 Roy. Micr. Soc., 1898, p. 610, pi. 13, fig. 11.— Rhumbler, Zool. Jahrb., 

 Abt. Syst., vol. 24, 1906, p. 52, pi. 3, fig. 39. 



Description. — Test much compressed, the very earliest ones niilio- 

 line, later ones becoming spiroloculine and finally in the last formed 

 coil more than two chambers appear, usually three making up a 

 complete coil; wall very finely striate-reticulate, periphery rounded 

 or subcarinate, aperture a sieve-plate the en the height of the cham- 

 ber, curved, with numerous pores. 



Diameter, about 1 mm. 



Distribution. — Rhumbler records two specimens of this species 

 from Laysan Island. Otherwise it seems to have been unrecorded 

 from the North Pacific. I have had excellent material, type, Cat. No. 

 9162 U.S.N.M., from Gaspar Straits (North Pacific Exploring Ex- 

 pedition, Captain Rodgers); from Hongkong; Nero stations 2042 in 

 55 fathoms and 2074 in 22 fathoms, off the Hawaiian Islands. 



D'Orbigny figures a much less compressed form with more cham- 

 bers in the final whorl, a smooth surface, the last formed coil making 

 up a greater portion of the visible test and the milioline portion 



