Chapman. — On some Foraminifera and Ostracoda. 107 



Subfamily Polystomellin^. 



Genus Nonionina, d'Orbigny. 



Nonionina umbilicatula, Montagu sp. 



Nautilus umbilicatulus, Montagu, 1803, Test. Brit., p. 191 

 Suppl., p. 78, pi. xviii, fig. 1. 



Nonionina umbilicatula, Mont, sp., Eggef, 1893, Abhand. k. 



bayer. Ak. Wiss, cl. ii, vol. xviii, abth. li, p. 426, pi. xix, 



figs. 36, 37. Millett, 1904, Jouru. R. Micr. Soc, p. 600. 



Brady records this species as abundant in the South 

 Pacific. It was also found by Millett in the Malay Archi- 

 pelago. Egger obtained it from soundings taken by the 

 " Gazelle " off Mauritius and New Guinea. 



Rare in our series. 



Report on the Ostracoda. 



All the species of Ostracoda here recorded, with the excep- 

 tions of Asterone australis, Brady, and Cytherideis hedleyi, 

 sp. nov., have been previously described in the report on the 

 dredgings made by the "Challenger,"* and the former 

 species in a later publication by the same author.! The 

 " Challenger " station nearest ours which yielded Ostracoda 

 is No. 167, west of New Zealand, and from this three species 

 only in common with our series are recorded. Among other 

 localities which afford species in common with those of our 

 list are : Off Booby Island, near Cape York, north-east 

 Australia (" Challenger " sta. 187), and Cocos Island, Indian 

 Ocean (coll., C. W. Andrews). Twelve species of Ostracoda 

 of known forms occur in our dredging, but only four of these 

 occur in each of the localities above mentioned ; and, curiously, 

 both of these dredgings were taken in quite shallow water. 

 The species which occur both in our list and that from Booby 

 Island are Cythere tetrica, C. crtspata, C. cancellata, and 

 Xestolebens margaritea. Those from Cocos Island common to 

 our list are G. cancellata, G. prava, G. dictyon, and Xestole- 

 beris margaritea. 



The following is a list of the Ostracoda found in the pre- 

 sent material, and the species new to the list given in the 

 " Index Faunae Novee-Zealaudiae " are marked with an as- 

 terisk. Of the fourteen species of Ostracoda given below, 

 nine are new to the New Zealand area. 



* Reports "Challenger" Expedition, Zoology, pt. iii, 1880: Ostra- 

 coda, 6. S. Brady. 



t Trans. R. Soc. Edin., 1890, vol. xxxv, pc. ii (No. 14). 



