FORAMINIFERA OF TITE NORTH PACIFIC OCEAN. 71 



TRILOCULINA FICHTELIANA d'Orbigny. 



Triloculina fichteliana d'Orbiqny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, 



"Foraminiferes," p. 152, pi. 9, figs. 8-10. 

 Miliolina fichteliana H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 



p. 169, pi. 4, fig. 9a-c. 



Description. — Test in the adult triloculine, somewhat wider than 

 long, the chambers rotund, peripheral margin rounded, sutures deep 

 and conspicuous, wall longitudinally striate, apertural end little if at 

 all produced; aperture rather large, rounded, with a simple tooth 

 and a slightly developed thickened lip. 



Length, up to 1.5 mm. 



Distribution. — Brady gives among his localities for this species the 

 following from the North Pacific "in dredged sand from the Inland 

 Sea of Japan, 14 fathoms, and from the Chinese Sea." 



Although Brady lumps together T. fichteliana d'Orbigny and 

 T. suborbicularis d'Orbigny, as well as T. webbiana d'Orbigny, there 

 seems to be some essential differences between the first and second 

 species at least, and the material I have had from the Hawaiian 

 Islands belongs to the second species. 



TRILOCULINA CUNEATA Karrer. 



Plate 17, fig. 1. 



Triloculina cuneata Karrer, Sitz. Akad. Wiss. Wien, vol. 55, Abteil, 1867, p. 359, 



pi. 2, fig. 8. 

 Miliolina cuneata Rhumbler, Zool. Jahrb., Abteil. Syst., vol. 24, 1907, p. 42, 



pi. 3, fig. 22. 



Rhumbler records and figures a single specimen from Laysan which 

 he refers to this species. The specimen, the figure of which is repro- 

 duced here, shows but two visible chambers on either side, as do 

 certain of Brady's figures referred to this species as a "Biloculine 

 variety." As this single specimen gives little information as to the 

 relation of this species, it is simply recorded here. 



TRILOCULINA CRIBROSTOMA (Rhumbler). 



Plate 17, fig. 8. 



Miliolina cribrostoma Rhumbler, Zool. Jahrb., Abteil. Syst., vol. 24, 1907, p. 47, 

 pi. 3, fig. 32. 



Description. — Test elongate, about twice as long as wide, elliptical, 

 longitudinally striate; aperture sieve-like. 



Length, 0.39 to 0.54 mm. 



Distribution. — Rhumbler described this species from numerous 

 specimens found in shore sands from Laysan. 



