in d. Naturgesch. d. nied. Thiere währ. d. Jahre 1876—1879. 775 



Placopsüina vesicularis n. Nord- Atlant. Ocean (1250 Faden), 

 Beoplax difflugiformis n. Atl. Ocean (2200 — 2740 Faden), 

 Rh. nodulosa n. Still. Ocean (1400—2000 Faden), Rh. mem- 

 hranacea n. Süd-Amer. (1900 Faden), Rh. spiculifera n. 

 Südsee (250—2300 Faden), Trochammina trullissata n. Atl. 

 Ocean (390—2200 Faden), Tr. ringens n. Atlant. Ocean 

 (1750—1900 Faden), Tr. paucilocidata n., Tr. coronata n. Atl. 

 Ocean (390—1900 Faden), Tr. lifuiformis n. Atl. Ocean 

 (350—900 Faden), Hormosina glohulifera n. Atlant. Ocean 

 (1000—2000 Faden), H. ovicida n. Südsee (1900—2600, 

 Faden), Cyclammina cancellata Norm. (= Lituola canarien- 

 sis Gart.), weit verbreitet (in Tiefen von 350 — 1900 Faden). 

 Zur nähern Charakteristik der von iinserm Verf. 

 neu aufgestellten oder emendirten Genera fügen wir die 

 nachfolgenden Diagnosen hinzu. 



Sorospliaera n. gen. Test free, irregulär; consisting of a 

 number of convex or sphaeroidal Chambers, either discrete or more 

 or less embracing, irregularly crowded together. Walls thinu, loo- 

 sely araneous in texture. General aperture none. 



Pelosina n. gen. Test free, one- or many-chambered, widh 

 walls composed of a thick layer of mud, terminating in an elongated 

 chitonous neck. 



Hyperammina Brady. Test free or adherent, elongate, 

 tubulär; primordial end closed and rounded; opposite extremity 

 open and unconstricted, formiug the general aperture. Texture 

 aranaceous, interior smooth. 



Jaculella n. gen. Test elongate, straight or nearly so, clo- 

 sed and pointed at one extremity, gradually increasing in width 

 towards the other, which, slightly constricted and rounded, but 

 otherwise open, forms the general aperture. Texture aranaceous, 

 very compact and hard ; exterior surface rough, interior also rough, 

 but in a less degree. Colour rieh brown in the earlier portion of 

 the test, becoming gradually lighter towards the wide end. 



Marsipella Norm. Test free, fusiform, tapering nearly 

 equally towards both ends; composed of fine sand, with very little 

 calcareous cement. Cavity nearly uniform in diameter; walls thicked 

 in the middle of the test. Exterior granulär, interior nearly smooth. 

 Aperture simple, one at each end of the test, often tinged brown. 



Bliisammina n. gen. Test free, tubulär, branching, flexible; 

 forming tangied weed-like tufts of indefinite size. Texture chitono- 

 araneous, slightly rough externally ; colour brown. 



Sagenella n. gen. Test adherent; consisting of long, finely 



