78 



BULLETIlS" 104^ UNITED STATES NATIONAL MUSEUM. 



Description. — Test elongate, subcylinderical, straight or more 

 often slightly curved, prolociilum ovoid or somewhat fusiform 

 gradually passing into the tubular chamber which is of smaller 

 diameter than the proloculum; wall smooth both without and witlihi, 

 composed of fine or occasional coarse sand grains with an abundance 

 of cement; yellowish or reddish browji hi color; aperture cii-cular, at 

 the open end of the tube. 



Diameter, usuallj^ about 0.5 mm.; length, up to 10-12 mm. 



Distribution. — As this species has usually been confused with 

 H. elongata, its distribution is difficult to determine from the records. 

 It was recorded as a variety by Wright from off Ireland and on the 

 western side of the Atlantic occurs frequently from Georges Bank 

 southward with a few specimens from the northern part of the Gulf 

 of Mexico. 



This is very different in all its specific characters from H. ehngcUa 

 and seems certahily worthy of specific rank. 



Hyperammina laevigata — material examined. 



Cat. 

 No. 



9695 

 9696 

 9697 

 9698 

 9699 

 9700 

 93'27 

 9328 

 9701 

 9330 

 9329 

 9331 

 9702 

 9332 

 9333 

 9334 

 9335 

 9336 



Coll. of— 



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- 

 mens. 



2 

 5 

 1 

 4 

 3 

 1 

 10+ 

 2 

 4 

 1 

 2 

 1 

 1 

 2 

 1 

 2 

 1 

 3 



Slntion. 



LocalUv. 



D2036. 

 P2041. 

 D2042. 

 02043. 

 D2115. 

 D2217. 

 D2221. 

 P2222. 

 02383. 

 02393. 

 D2.531. 

 02.5.50. 

 D2679. 

 02682. 

 1)2684. 

 02716. 



H60. 



H82. 



38 52 40 N. 



39 22 60 N. 

 39 33 00 N. 

 39 49 00 N. 

 35 49 30 N. 

 39 47 20 N. 

 39 05 30 N. 



39 03 15 N. 

 28 32 00 N. 

 28 43 00 N. 



40 42 00 N. 

 39 44 30 N. 

 32 40 00 N. 

 39 38 00 N . 

 39 35 00 N. 

 38 29 30 N. 

 17 39 00 N. 

 13 29 00 N. 



69 24 40 W. 

 68 25 00 W. 

 68 26 45 W. 



68 28 30 W. 

 74 34 45 W. 



69 34 15 W. 

 VO 44 30 W. 



70 50 45 W. 

 88 06 00 W. 

 87 14 30 W. 

 66 33 00 W. 

 70 30 45 W. 

 76 40 30 W. 

 70 22 00 W. 

 70 54 00 W. 

 70 57 00 W. 

 65 44 00 W. 

 62 42 40 W. 



Depth 

 in 



fath- 

 cms. 



1,735 



1,608 



1,555 



1,467 



S43 



924 



1,525 



1,537 



1,181 



525 



852 



1,081 



782 



1.004 



1,106 



1,631 



578 



1,051 



Bot- 

 tom 

 tem- 

 pera- 

 ture. 



"F. 



38 



38 



38.5 



38 5 



39 



38.1 



36.9 



36.9 



39.8 



41.1 



34.4 



38.5 



38 6 



Character of 

 bottom. 



glob, oz 



glob, oz 



glob, oz 



clob. oz 



ra. fne. s 



gy-m 



gy.oz 



ey. oz 



or. gn. m 



It. gv. m 



^,'y-m 



br. m 



It. gy.oz 



gn. m. s 



br. c. bk. sp. 

 br. 07. for... 



CO. s. for 



for.m.bk.sp. 



Abimdance. 



Rare. 

 Few. 

 Rare. 

 Rare. 

 Few. 

 Rare. 

 Few. 

 Rare. 

 Few. 

 Rare. 

 Few. 

 Rare. 

 Rare. 

 Rare. 

 Rare. 

 Few. 

 Rare. 

 Rare. 



HYPERAMMINA DISTORTA, new species. 



Description. — Test free, elongate, consisting of a bulbous proloc- 

 ulima, somewhat wider than long and greater in breadth than the 

 following elongate second chamber, basal surface of the proloculum 

 truncately rounded, surface smooth; second chamber more or less 

 tortuous, with very numerous slight constrictions placed closely 

 together, surface otherwise smooth; wall composed of sand grains 

 of small size with an abundance of yellowish-brown cement; aper- 

 ture formed by the open end of the tubular second chamber; color 

 in general light yellowish brown, the proloculum darker in compari- 

 son than the second chamber, which toward the apertural end 

 becomes a light yellowish gray. 



