48 



BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



Saccammina diffliigiforniis Eimer and Fickert, Zeitsclir. Wiss. Zool., vol. Go, 



1899, p. (i7L 

 Proteonina diflugiformis Rhumbler, Arch. Prot., vol. 3, 1903, p. 245, figs. 80a, h 



(in text).— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 42; figa. 40, 41 



(in text). — Rhumbler, Foram. Plankton-Exped., pt. 1, 1911, pi. 2, figa. 



7-14, pt. 2, 1913, p. 378.— Pearcev, Trans. Roy. Hoc. Edinburgh, vol. 49, 



1914, p. 1000. 



Description. — Test free, consisting of a single elongate oval or 

 pyriform chamber with a more or less distinct tubular neck usually 

 tapering gradually from the body of the chamber, undivided; wall 

 fairly thick, of sand grams of variable size, firmly cemented or in 

 small specimens with an excess of cement and fairly smootli; aper- 

 ture circular, simple, terminal. 



Length, up to 0.75 mm. 



Distribution. — Tlie distribution of this simple species is so extensive 

 that little detailed mention need be given. It is recorded both from 

 the Arctic and to the Antarctic Cucle, in shallow water from the 

 coasts of Europe, common along our own Atlantic coast and from the 

 Gulf of Mexico, off Brazil, and off the Falklands. 



The shape is often irregular, due to the mcorporation of a large 

 sand grain at the side, and thus causing a \qyj prominent angle at 

 one side. The material varies greatly and with it the color of the 

 specimen, the small ones often as noted by Heron-Allen and Ear- 

 land^ composed largely of ferruginous cement while in large specimens 

 the cement is not noticed among the coarse sand grains. Rhumbler 

 figures specimens made up almost entirely of the broken fragments of 

 other foraminiferal tests, especially Globigerinae. 



Proteonina difflugiformis — vmteriol exavuned. 



Cat.' 

 No. 



Coll. of- 



9739 

 9740 

 9741 

 9742 

 9743 

 9744 

 9745 

 974G 

 9747 

 9748 

 9749 

 9750 

 9751 

 9752 

 9753 

 9385 

 9386 

 9387 

 9388 

 9389 

 9390 

 9391 

 9354 

 9755 



U.S.N.M. 

 U.S.N. M. 

 U.S.N.M. 



U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 



No. of 

 speci- 



10+ 

 1 



2 

 3 



■2 



1 

 1 

 3 

 2 



10 

 1 

 1 

 3 

 1 

 3 

 1 



D?Ptli! torn 



Localilv. 



D201S. 

 D2093. 

 D2111. 

 D2115. 

 D2171. 

 D2189. 

 1)2203. 

 D2204. 

 D2205. 

 D2212. 

 D2217. 

 D2226. 

 D2262. 

 D23T2. 

 D2394. 

 D2530. 

 D2531 . 

 D2550. 

 D2552. 

 D25G2. 

 D2508. 

 D2581 . 

 D2G77. 

 1)2701 . 



37 12 22 N.; 

 39 42 50 N.; 

 35 09 SO N.; 

 35 19 30 N.; 

 37 59 30 N.; 

 39 49 30 N.; 

 39 34 15 N.; 

 39 30 30 N.; 

 39 35 00 N.; 

 39 59 30 N.; 

 39 47 20 N.; 

 37 00 00 N.; 



39 54 45 N.; 

 29 15 30 N.; 

 28 38 30 N.; 



40 53 30 N.; 

 40 42 00 N.; 

 39 44 30 N.; 

 39 47 07 N.; 

 39 15 30 N.; 

 39 15 00 N. 

 39 43 00 N. 

 ■S2 3U 00 N 

 15 39 00 N 



74 20 04 W. 

 71 01 20 W. 

 74 57 40 W. 

 74 34 45 W. 

 73 48 40 W. 



70 26 00 Vv'. 



71 41 15 W. 

 71 44 30 W. 

 71 IS 45 W. 



70 30 45 W. 

 (i9 34 15 W. 



71 54 00 W. 



69 29 45 W. 

 85 29 30 W. 

 87 02 00 ^V. 

 66 24 00 W. 

 66 33 00 W. 



70 30 45 W. 



70 35 00 W. 



71 25 00 VV. 

 68 08 00 W. 



■; 71 34 00 \V. 

 76 50 30 W. 

 38 32 54 ^V. 



fath- 

 oms. 



1,000 

 938 

 843 

 444 

 600 

 728 

 728 



1,073 

 428 

 924 



2,045 

 250 



420 



956 



852 



1,081 



721 



1,434 



1,781 



394 



478 



818 



tem- 

 pera- 

 ture. 



'F. 



39 



39 



39 



39.5 



39.7 



38.9 



39.1 



38.1 



40 



38.1 



36.8 



41.0 



'4i."8' 

 38.4 

 34.4 

 38.5 

 39.6 

 37.3 

 36.9 



39. 



Character of 

 bottom. 



bu. m 



s. m 



gn. m 



m. tne.s 



gn.m 



gn. m.s 



gu. m. s 



br. m 



gy-oz 



gn.m 



gy-m 



glob, oz 



gn. m.s 



g 



gn.m 



gy.oz 



gy-m 



. m. 



gy. oz . . 

 gy.oz.. 

 gj'. oz . . 

 gn.m.. 

 gn.m.. 

 pter. oz. 



Abundance. 



Common. 



Few. 



Common. 



Kare. 



■Rare. 



Few. 



Few. 



Rare. 



Kare. 



Rare. 



Few. 



Rare. 



Common. 



Rare. 



Bare. 



Few. 



Rare. 



Few. 



Rare. 



Few. 



Few. 



Rare. 



Rare. 



Rare. 



1 Proc. Roy. Irish Acad., vol. 31, 1913, p. 42. 



