48 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



Description. — -Test small, ])lanospiral, subglobose, composed of 

 about two colls, chambers few, three or four in the last-formed coil, 

 slightly concave at the umbilical region, very broad and low; wall 

 coarsely arenaceous, thin, roughened on the exterior; aperture a 

 short slit at the base of the chamber, often obscured by sand grains; 

 color variable, depending largely upon the material of the test. 



Diameter, 0.25-0.75 mm. 



Distribution. — From j)ublished records this is a common s))ecies, 

 yet I have failed to find it in material from the western Atlantic, 

 nor is it recorded by Goes or Flint from the same region. The 

 Atlantic records in(;lude Baffins Bay, Smith Sound, and Franz 

 Josef Land at the north, off the coasts of Scotland and Ireland, 

 and at numerous Challenger Atlantic stations, one of which at least 

 is in the area from which many of the Albatross stations are located . 

 Pearcey records it from the Antarctic. 



HAPLOPHRAGMOIDES RUNIANUM (Heron- Allen and Earland). 



Plate 10, figs. 1 and 2. 

 Haplnphragnium rtinianum Heron-Allen' and Earland, Trans. Linn. Soc. 

 London, vol. 11, pt. 13, 1916, p. 224, pi. 40, figs. 15-18. 



Description. — "Test free, nautiloid, more or less depressed at the 

 umbilicus, constructed of rather coarse sand grains and gray cement. 

 As a rule, no septation visible externally. In large specimens an 

 occasional constriction indicates the presence of a suture. Marginal 

 edge thick and rounded. Aperture simple, ranging between a 

 fissure and a constricted terminal opening of irregular form. Viewed 

 as an object in balsam, the multilocular character of the test becomes 

 apparent; it is then seen to consist of three to four convolutions 

 divided into numerous chambers (13 or 14 in the last convolution) 

 by septal waUs that are usually very thin in comparison with the 

 thick outer wall of the test. The chambers are almost square in 

 section." 



"Diameter, 0.5-0.7 mm.; width of final convolution, 0.1; breadth 

 of each chamber in final convolution, 0.1." 



Distribution. — This species was described by the authors from a 

 single station of the Runa from Scresort Bay, Rhum, off the west of 

 Scotland, in 3 fathoms (5.5 meters). 



The description and figures are from Heron-Allen and Earland. 



HAPLOPHRAGMOroES CORONATA (H. B. Brady). 



Plate 9, fig. 1. 



Trochamm'nia coronata H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 58, 

 pi. 5, fig. 15; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 340, pi. 40, 

 figs. 10-12.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 281, pi. 26, fig. 3. 



IJaplophragmoides coronata Cushman, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, 

 p. 99, fig. 145-47. 



Description. — Test planospiral, composed of three to six coils, 

 outer ones somewhat embracing but not covering the whole of the 



