426 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Palawan Passage, in 43 fathoms (78 meters). This variety has been 

 noted from the Hawaiian Islands. 



Quinqiteloculina bicomis var. elegans — Material examined. 



QUINQUELOCUUNA CURTA Cushman. 



Plate 100, figs. 1, 2. 



Miliolina cuvieriana Millett (not d'Orbigny), Journ. Roy. Micr. Soc, 1898, p. 



505, pi. 12, figs. 2a, 6. 

 Quinqueloculina disparilis d'Okbiqny, var. curta Cushmax, Bull. 71, U. S. Nat. 



Mu8., pt. 6, 1917, p. 49, pi. 14, fig. 2; fig. 30 (in text). 



This species, figured by Millett from the Malay Archipelago and 

 which I described as a variety of Q. disparilis from southern Japan, 

 is very common, often abundant, in the Philippine region, where 

 it reaches a large size. The test is characterized by broad peripheral 

 angles, which are marked by several coarse costae. The sides of the 

 chambers are either unornamented or mth fine wrinkle-like markings. 

 The younger specimens, as is usual in many species, are shorter than 

 the adult, and later become somewhat longer than broad. The test 

 is a dull cream-white color. The aperture has a thickened wall, and 

 the tooth development is very large and complex. The stages in 

 development of this complex aperture are very interesting. 



Length up to 3 mm. 



The megalospheric form has a large proloculum and a second 

 cornuspiralike chamber, which is ornamented with several costae, 

 as shown in the figiu*e. From a study of d'Orbigny's original de- 

 scription and figm^es, together with the recent material which I 

 obtained in the shallow water of the West Indies, this possibly may 

 be Q. cuvieriana. It is a species with sharp angles, often carinate, 

 with slight, partially developed, costae at either side. D'Orbigny's 

 figure of this species is very accurate when compared with shallow- 

 water West Indian material, and evidently represents a definite 

 species in that region. The material figured by Millett under this 

 name is undoubtedly the same as that which I had from southern 

 Japan, and which is now found to be abundant in the Philippine 

 region. The species is characteristic of shallow water; specimens 

 become few and rare as depth greater than 100 fathoms is reached. 

 All the stations of this species are in the Archipelago except one. 

 These include the following localities: China Sea, off southern Luzon; 



