FORAMINIFERA OP THE ATLANTIC OCEAN". 



85 



JACULELLA OBTUSA H. B. Brady. 



Plate 32, fig. 5. 



Jaculella obhisa H. B. Brady, Proc. Roy. Soc. Edinburgh, vol. 11, 1882, p. 714; 

 Hep. Yoy. Challenger, Zoology, vol. 9, 1884, p. 256, pi. 22, figs. 19-22.— 

 Goiis, Kongl. Svensk. Vet. Akad. Handl., vol. 25, No. 9, 1894, p. 20, pi. 4, 

 figB. 87-89; pi. 5, figs. 90, 91; Bull. Mus. Corap. Zool., vol. 29, 1896, p. 23.— 

 Rhumbler, Arch. Prot., vol.3, 1903, p. 273, fig. 123 (in text).— F. Chapman, 

 Journ. Linn. Soc. Zool., vol. 30, 1907, p. 24, pi. 3, fig. 49.— Cushman, Bull. 

 71, U. S. Nat. Mus., pt. 1, 1910, p. 71, fig. 92 (in text).— Awerinzew, Mem. 

 Acad. Imp. Sci. St. Petersburg, scr. 8, vol. 29, No. 3, 1911, p. 14, pi., fig. 

 5. — Heron-Allex and Earland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 

 1913, p. 41; Trans. Linn. Soc. London, vol. 11, pt. 13, 1916, p. 220. 



Description. — Test elongate, straight, tubular, slightly if at all 

 tapering, proximal end closed, obtusely rounded, distal end but 

 slightly broader, its open end forming the aperture; wall thick 

 composed of firmly cemented sand grains, exterior rough ; color gray. 



Length, 10-15 mm. 



Distribution. — From the European side of the Atlantic the species 

 is Imown from Bergen, Norway; Skagerack (Goes); Faroe Channel 

 (H. B. Brady) ; several stations west of Scotland; and from the Clare 

 Island region west of Ireland (Heron-Allen and Earland). Awer- 

 inzew records it from the Siberian Ai'ctic. It is unrecorded from 

 the western Atlantic. In the Albatross and other material I have 

 examined it has occurred at but seven stations just south of 40° N. 

 and around 70° W., with one farther north. Depths range from 1 ,362 

 to 1,917 fathoms and bottom temperatures from 36.9° to 41° F. 

 From the northernmost station the depth is but 206 fathoms. From 

 its general distribution it would seem that this species is more charac- 

 teristic of cooler waters than is its closely related species, J. acuta. 



Jaculella obtusa — material examined. 



Genus DENDROPHKYA Sir. Wright, 1861. 



Dendrophrya Str. Wright (type, Dcndrophrya erccta Str. ^^'right), Ann. Mag. 

 Nat. Iliet., ser. 3, vol. 8, 1861, p. 133. — Butschli, in Bronn, Klasson und 

 Ordnungen Thierreichs, vol. 1, 1880, p. 195. — II. B. Brady, Rep. Voy. 

 Challenger, Zoologj', vol. 9, 1884, p. 237. — Rhumbler, Arch. Prot., vol. 3, 

 1903, p. 220. 



