FORAMINIFERA OF NORTH PACIFIC OCEAN. 7 



Distribution. — This species seems to be rare in the North Pacific, 

 having been noted but once in the material examined, Nero station 10, 

 in 2,098 fathoms, west of the Hawaiian Islands. 



This seems to be distinct from the form here referred to L. sacculus 

 Fornasini, as the outline is more nearly that of the figures given by 

 Reuss and the exterior is very smoothly sloping without an accentua- 

 tion of the central chamber as in the species L. sacculus. 



LAGENA LAEVIGATA (Reuss). 

 Plate 2, fig. 1. 



Fissurina laevigata Reuss, Denkschr. Akad. Wiss. Wien, vol. 1, 1849, p. 366, pi. 



46, fig. 1; Sitz. Akad. Wiss. Wien, vol. 46, pt. 1, 1862 (1863), p. 338, pi. 6, 



fig. 84— Terquem, Mem. Soc. Geol. France, ser. 3, vol. 2, 1882, p. 30, pi. 1 



(9), figs. 17 a, b. 

 Lagena laevigata Terrigi, Atti Accad. Pont. Nuovi Lincei, vol. 33, 1880, p. 177, 



pi. 1, fig. 6. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 



473, pi. 114, figs. 8 a, b. — Blackwill and Millett, Journ. Micr., vol. 3, 1884, 



p. 81, pi. 2, fig. 6. — Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. n, 



vol. 18, 1893, p. 330, pi. 10, figs. 64, 65.— Madsen, Medd. fra Dansk. Geol. 



Forening, No. 2, 1895, pp. 74, 195, pi., fig. 3. — Millett, Journ. Roy. Micr. 



Soc, 1901, p. 493. — Sidebottom, Mem. Pr,oc. Manchester Lit. and Philos. 



Soc, vol. 50, No. 5, 1906, p. 5, pi. 1, fig. 6 [?]. 

 Fissurina globosa Bornemann, Zeitschr. deutsch. geol. Ges., vol. 7, 1855, p. 317, 



pl. 12, fig. 4. 

 Lagena marginata Haeusler, Neues Jahrb. fur Min., 1887, pt. 1, p. 186, pl. 4, 



figs. 51, 52 (not Vermiculum marginatum Montagu). 



Description. — Test subglobose, compressed, somewhat pyriform in 

 front view, in cross section elliptical; wall smooth, transparent in 

 thin specimens or opaque in more thickened ones, along the lateral 

 margins usually clear even hi thickened specimens; aperture elongate, 

 fairly narrow, connecting with the interior by a fairly long entoso- 

 lenian neck. 



Length up to 1 mm.; breadth slightly less. 



Distribution. — Brady records this species at four Challenger sta- 

 tions in the western and middle North Pacific from 1,850 to 3,125 

 fathoms in depth. In the material which I have examined it has 

 occurred at many Nero and Tuscarora stations from the Hawaiian 

 Islands to Japan, the depths varying from 1,186 to 2,086 fathoms. 



This species is common everywhere from existing records, yet fails 

 to appear as would be expected in lists from certain regions. This 

 may be due to the fact that the figure in the Challenger Report was 

 not placed on the plates with the others but is near the end of the 

 volume and may have been overlooked. 

 89977°— Bull. 71, pt. 3—13 2 



