no.1759. NEW FORAMINFERA FROM PHILIPPINES CUSHUAN. 



441 



«13 



Figs, 12-14.— Ammobaculites reophaciformis. \ 25. 

 From photograph. 



aperture circular, in the middle of the terminal face, often on a pro- 

 jecting, neck-like portion: color variable, usually white or gray. 



Length, up to 3.5 mm., diameter, 0.1 to 1.0 mm. 



Type-specimen. -Cat. No. 8207, U.S.N.M., from Albatross station 

 515(1. 



This is typically a shallow-water coral reef species, and has 

 been found abundantly in the 

 Philippine material from such 

 stations, between 16 and 78 

 fathoms. 



The early coiled portion 

 separates it from Reophax, 

 but the later portion alone 

 would be described as be- 

 longing to that genus. At 

 lirst I took it to be the micro- 

 spheric form of some species 

 of Reophax, but it is very 

 abundant and when perfect 

 seems always to have the 

 coiled early development. 

 Reophax scorpiurus, which it 

 in some ways resembles, is a common species in the same locality, but 

 in the material examined was not seen to have a true close-coiled 

 young in any case, although the young portion is often curved. 



AMMOBACULITES CYLINDRICUS, new species. 



Haplophragmium calcareum (part), II. B. Brady, Re]). Voy. Challenger, Zoology, 



vol. 9, 1884, pi. 23, fig. 6. 

 II. agglutinans Flint, Rep. U. S. Nat. Mas., L897 (1899), p. 275, pi. L9, fig. 2 (nol 



Spirolina agglutinans d'Orbigny). 



Description. — Test free, elongate, cylindrical; early chambers 

 planospiral, completely involute, with five to six chambers in each 



volution; later portion uncoiled, cylindrical, 

 made up of a linear series of chambers; wall 

 coarsely arenaceous, but the surface rather 

 smoothly finished; aperture in the middle of 

 the terminal face in the uncoiled portion sim- 

 ple ; color, gray. 



Length, 2 mm., diameter, 0.5 to 0.75 mm. 

 Type-specimen. Cat. No. 8205, U.S.N.M., 

 from A Ibatross station 5201. 

 This species differs from the ordinary form of A. calcareus in its 

 cylindrical shape and from A. agglutinans in the greater proportion of 

 coiled chambers, which are completely involute. 



Figs. 15, 16.— Ammobaculites 

 cylindricus. x 20. From 



PHOTOGE \PI1. 



