FOBAMINIFEKA OF THE ATLANTIC OCEAX. 23 



Genus MARSIPELLA Norman, 1878. 



I'roteonina W. B. Carpenter, Proc. Roy. Soe. London, vol. 18, 1809, p. (iO (not 

 Protconina AYilliamson, 1858). 



Afarsipella Norman (tyiie, M. eloiigata Norman), Ann. Mag. Nat. Hist., ser. 5, 

 vol. 1, 1878, p. 281.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 264.— EiMER and Fickert (part), Zeitechr. Wies. Zool., vol. 65, 1899, 

 p. 668.— Rhumbler, Arch. Prot., vol. 3, 1903, p. 265.— Cushman, Bull. 71, 

 U. S. Nat. Mus., pt. 1, 1910, p. 29. — Heron-Allen and Earland, Journ, 

 Roy. Micr. Soc, 1912, p. 388. — Rhumbler, Plankton Exped., Foraminiferen, 

 pt. 2, 1913, p. 382. 



Description. — Test free, tubular, cylindrical or fusiform, some- 

 times recurved at the ends, wall composed wholly or in part of 

 sponge spicules, or in part of sand grains, thin, firmly cemented; 

 aperture formed by the open ends of the tube oi- in some cases closed 

 anteriorly by a loosely aggregated knob of spicules. 



The discoveiy by Heron- Allen and Rarland in M. cylindnca of 

 definite aportured "head" with a bulbous mass of sponge spicules 

 gives rise to the ({uestion as to tlie completeness of many of our 

 dredged specimens. The descrii>tion of the genus is modified very 

 nearly as suggest(Hl by ITeron-AUen and Earland in their paper.* 



MAKSIPELLA ELONGATA Norman. 



Plate 8, figs. 2, 3. 



Proteonino. speciefi. W. B. Carpenter, Proc. Roy. Soc. London, vol. 18, 1869. 



p. 60. 

 Afarsipella elongata Norman, Ann .Mag. Nat. Hist., ser. 5, vol. I, 1878, p. 281, 



pi. 16, fig. 7. -Carpenter, The Microscope, ed. 6, 1881, p. 561, figs. 320d-/.— 



H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 265, pi. 24, lige. 



10-19.— ('hapman, Proc. Zool. Soc. London, 1895, p. 13. -Flint, Rep. U. S. 



Nat. Mils., 1897 (1899), p. 270, pi. 12, fig. 1.— Rhumbler, Arch. Prot., vol. 3, 



1903, p. 265, fig. 110 (in text); Plankton Exped.. Foraminiferen. pt. 1, 1909 



a911\ pi. 2, fig. 21: pt. 2, 1913, p. 382. 



Description. — Test elongate, somewhat fusiform, irregularly curved, 

 thickest in the central portion and gradually tapering toward the ends 

 walls composed of sponge spicules with the central thicker portion 

 covered with sand grains, spicules almost exclusively forming the 

 ends of th<^ tubes, laid together lengthwise and cemented firmly in 

 place; aperture at the ends of the tube. 



Length, up to 8 mm. 



Distrihution. — Brady recorded this species from the Faroe Channel. 

 440 to 542 fathoms, on Rockall Bank, 54 fathoms and southward 680 

 fathoms; west of Valeutia, off southwest Ireland, 808 fathoms; off 

 Gomera, Canary Islands, 620 fathoms; off the Azores, 900 fathoms; 

 and off Pernambuco, Brazil, ;:5oO fatlioras. Flint records it from three 

 Albatross stations, D2150, in 382 fathoms near Old Providence Island, 

 Caribbean Sea; 132.383, in 1,181 fathoms northern portion of the Gulf 



' Toum. Koy. Mior. .''op., 1912, p. 388. 



