10 



BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



fathoms. Bottom temp era tm'es range from 37.3° to 40.6° F. 

 South of this it has not occmTcd in the material dredged. 



Brady records it from off the Cape of Good Ho])e and Pearcey from 

 two deep water stations in the Antarctic. 



Astrorhiza arenaria — material examined. 



1 "Character of bottom,'' determined by the specimens from the sounding cup, is expressed by abbre- 

 viations, the key to which is appended. It will be noted that tho.-;fi abbreviations are arbitrarily capitalized 

 for nouns. When used as adjectives, however, the noun abbreviations are not capitalized. 



bk black 



bl blue 



br brown 



br-gn brownish-green 



brk broken 



C Clay 



Clmps Clumps 



Co Coral 



CTS coarse 



dk dark 



fne fine 



For Foraminifera 



G Gravel 



Glob Globigerina 



gn green 



gn-br greenish-browu 



gn-gy greenish-gray 



gy gray 



hrd hard 



Lav Lava 



M Mud 



im'gn margins 1 



Mss Masses 



Oz ooze 



P Pebbles 



I'tr I^'teropod 



K Rock 



Rf. Reef 



vky rocky 



S Sand 



sctrd scattered 



Sh Shells 



sml small 



Sp Specks 



St Stones 



vol volcanic 



W Seaweed 



wli white 



.4STBORHIZA ANGULOSA H. B. Brady. 



Plate 3, fig. 2; plate 4, figs. J-3. 



Astrorhiza angulosa H. 13. Bii.\dy, Quart. Journ. Micr. Sci., vol.. 21. 1881, p. 48; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 234, pi. 20, fige. 10-13.— Goes, 

 Bull. Mus. Comp. Zool., vol. 29, 1893, p. 19. -Flint, Rep. U. S. Nat. Mus.. 

 1897 (1899), p. 265, pi. 3, fig. 1.— Riiumbler, Arch. Prot., vol. 3, 1903, p. 218. 

 fig. 38 (in text).— Oushma.v. Bull. 71, U. S. .\at. Mus.. pt. 1, 1910, p. 20, fig. 

 1 (in text). 



Description. — Test somewhat compressed, subtriangular or rarely 

 quadrangular, biconvex, broadlj" rounded at the edges, angles of 

 the test formed by the open ends of tubular portions radiathig from 

 a small globular central chamber; wall composed of fme sand, the 



