DESCRIPTIVE CATALOGUE OF RECENT FORAMINIFERA. 301 



MILIOLINA PULCHELLA d'Orbigny. 

 (Plate 46, fig. 4.) 



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

 costas are somewhat less prominent, and Jai'd'^iipplemen.ted^by quite 

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



Locality. Off Carysfort Light, Florida .(g^tioi 3641;); jS 



MILIOLINA RETICULATA d'Orbigny. 

 (Plate 46, fig. 5.) 



The single feature which characterizes this species is the surface 

 ornamentation formed by two sets of fine, parallel striae 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 A inch). 



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



Svtbfaixiily H^TJKRUVI^vE. 



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

 linear. 



Genus ARTICULINA. 



Chambers milioline at the commencement, subsequently in a straight 

 series. 



ARTICULINA SAGRA d'Orbigny. 

 (Plate 47, fig. 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, 2629), 222 to 1,1(39 fathoms. 



Genus VERTEBRALINA. 



Early chambers partly milioline and partly planospiral; later seg- 

 ments in straight series. 



