140 Transactions of the Society. 



shaped, with rounded base and produced neck. The neck of each 

 segment is longer than that of the one preceding it. Each segment 

 is fitted on to the back of the preceding one in such a manner as 

 to conceal the produced neck of the latter when viewed from the 

 back of the test. On the lateral sides of the initial chamber there 

 is a short costa. Sutures oblique and deeply sunk, orifice marginal. 

 Only one occurs. In some respects the specimen bears a 

 resemblance to Chapman's Vaginulina neocomiana, Quart. Journ. 

 Geo. Soc, 1894, p. 711. pi. xxxiv., figs. 10, 11, but the descrip- 

 tion of his species shows that there are marked differences between 

 the two forms. 



Cristellaria Lamarck. 

 ' Cristellaria crepidula (Fichtel and Moll). 



Nautilus crepidtda Fichtel and Moll, 1803, Test. Micr., p. 107, pi. xix, 



figs. g-i. 

 Cristellaria crepidtda d'Orbigny, 1839, Foram. Cuba, p. 64, pi. viii, 



figs. 17, 18. 

 C. crepidula Flint, 1899, Kept. U.S. Nat. Mus. for 1897 (1899), p. 316, 



pi. Ixiii, fig. 2. 



There are twenty-two tests, which I have brought together 

 under the above heading. They are small, with the exception of 

 two or three. Several are typical. One clearly resembles C. 

 crepidula d'Orbigny in the above reference, but has fewer 

 chambers. Intermediate forms are present, linking this species to 

 C. schloenhachi Eeuss, 1862, Sitzungsb. d. k. Ak. Wiss. Wien., vol. 

 xlvi,-p. 65, pi. vi, figs. 14, 15. 



Cristellaria tenuis (Bornemann). 



Marginulina tenuis Bornemann, 1855, Zeitschr. d. deutsch. geol. Gesellsch., 



vol. vii, p. 326, pi. xiii, fig. 14. 

 C. tenuis Brady, 1884, Chall. Kept., p. 535, pi. ixvi, figs. 21-23. 

 C. tenuis Flint, 1899, Kept. U.S. Nat. Mus. for 1897 (1899), p. 315, 



pi. Ixi, fig. 2. 



A single, excellent example, 



Cristellaria latifrons Brady. 



Cristellaria latifrons Brady, 1884, Chall. Eept., p. 544, pi. Ixviii, fig. 19; 

 and pi. cxiii, fig. 11. 



The two tests found are not typical ; they are more compressed 

 than the type-form. One has the orifice at the end of a produced 

 neck, and the other has probably been in the same condition, but 

 it is fractured. They represent, I think, a weak form of the above 

 species. 



I have typical examples of this rare species from Cebu, 

 Philippine Islands, 120 fms. 



