DESCRIPTIVE CATALOGUE OF RECENT FORAMINIFERA. 301 



MILIOLINA PULCHELLA d'Orbigny. 

 (Plate 46, fig. I.) 



Apparently a modified form of M. Mnnceana, in which the longitudinal 

 costse arc somewhat less prominent, and are supplemented by quite 

 numerous short diagonal ridges. Length, about 1 mm. (^ inch). 



Locality. — Off Carysfort Light, Florida (station 2041), 60 fathoms. 



MILIOLINA RETICULATA d'Orbigny. 

 (Plate -Hi, fig. 5.) 



The single feature which characterizes this species is the surface 

 ornamentation formed by two sets of fine, parallel strhe running 

 diagonally to each other, producing a network of ridges. 



Locality. — Straits of Yucatan (station 2358), 222 fathoms. 



MILIOLINA AGGLUTINANS d'Orbigny. 

 (Plate 47, fig. 2.) 



Broad, oval, thick, rounded; sutures obscure; terminal segment not 

 produced ; aperture large, with conspicuous appendicular tooth. Differs 

 from M. seminulum in that the whole surface is incrusted with fine 

 white sand. Length, from 1.5 to 0.6 mm. (^ to 4 \ inch). 



Locality. — Straits of Yucatan (station 2358), 222 fathoms. 



Subfamily EtAXTERIlSniJNrjE. 



Test dimorphous; chambers partly milioline, partly spiral or recti- 

 linear. 



Genus ARTICULINA. 



Chambers milioline at the commencement, subsequently in a straight 

 series. 



ARTICULINA SAGRA d'Orbigny. 

 (Plate 47, tig. 1.) 



Irregularly long oval, or linear, compressed; the earlier segments 

 milioline or confused, the later rectilinear; sutures constricted, each 

 segment of the linear series overhanging the preceding; surface orna- 

 mented with fine, parallel, longitudinal striae; aperture a long oval 

 slit, with strongly everted lips, occupying the whole breadth of the 

 oral extremity of the shell. 



Localities. — Straits of Yucatan and the mouth of Exuma Sound 

 (stations 2358, 2G29), 222 to 1,169 fathoms. 



Genus VERTEBRALINA. 



Early chambers partly milioline and partly planospiral; later seg- 

 ments in straight series. 



