728 MESSRS. E. HEEON-ALLEN AND A. EAELAND ON THE 



8 Stations. 



Rather sparingly distributed and never abundant, but large and excellent specimens 

 were found at Stns. and 11, good ones at Stns. 3 and 6, and a few small but quite 

 topical individuals at Stn. 1. The species must not be confounded with Schultze's 

 Acermilina glohosa (S. 1854, OP. p. 68, pi. vi. figs. 13, 14). 



POLYTREMA Risso. 



438. Polytrema miniaceum (Linne). 



ora miniacea Linne, 1788, SN. p. 3784. no. 6. 



„ „ Defrance, 1824, Diet. Sci. Nat. vol. xxxi. p. 82. 



„ „ Blainville, 1834, Manuel d'Actinologie, p. 410. 



Polytrema miniacea Carpenter, Parker, & Jones, 1862, IP. p. 235, pi. xiii. figs. 18-20. 

 „ miniaceum Carter, 1876, P. p. 185, pi. xiii. figs. 1-6. 



„ ,, Mobius, 1880, FM. p. 85, pi. vii. 



Brady, 1884, FG. p. 721, pi. c. figs. 5-9, pi. ci. fig. 1. 

 „ Chapman, 1899, FFA. p. 16, pi. iv. fig. 7 (References). 



Dakin, 1906, FC. p. 210, fig. 12. 



9 Stations, 



Fairly generally distributed, and probably abundant upon coarse material in the 

 area, but, as very little such was available for examination, the records are few. 

 Among the finer material, however, several specimens were found in the early free 

 stage described by Schlumberger (S. 1892, FAM. p. 210, fig. 5) and by Lister 

 (L. 1903, F. p. 121). No specimens were found of the white or colourless variety 

 described by Carter (C. 1877, CB. p. 213, pi. xiii. fig. 14) and found at the Cocos 

 Keeling Atoll by Chapman (C. 1902, CKA. p. 232), excepting at Stn. 11. P. miniaceum 

 is also recorded from the Gulf of Manaar by Carter (C. 1880, etc., SGM. 1880, p. 440). 

 See also M. Schultze's " Ueber Polytrema miniacetim" (in Wiegmann's Archiv fiir 

 Naturg. 1863, vol, i. pp. 81-102), in which, following de Blainville (ut supra), he 

 identifies P. corallina of J. A. Eisso (Hist. nat. des principales productions de 

 I'Europe meridionale, Paris, 1826, vol. v. p. 340) with the species. 



438 a. Polytrema miniaceum, var. alba Carter. 



Polytrema miniaceum, var. album Carter, 1877, CB. p. 213, pi. xiii. figs. 14, 15. 

 „ alba Brady, 1884, FC. p. 721, pi. ci. figs. 2, 3. 

 „ „ „ Chapman, 1900, FLF. p. 201. 



„ „ „ Ciiapman, 1901, FFA. p. 393. no. 11. 



1 Station. 



A few broken specimens at Stn. 11, and a young free rotaliue individual. 



