924 Transactions of the Society. 



Gypsina globulus, Eeuss, sp. 



Ceriopora globulus, Eeuss, 184:7, Haidinger's Naturw. AbhandL, vol. ii. 



p. 33, pi. V. fig. 7. 

 Gypsina globulus, Wrigtit, 1886, Proc. E. Irish Acad., ser. 2, vol. iv. 

 (Science) p. 614. 

 A single large specimen reported by Wright from 110 fathoms, 

 south-west of Ireland. 



Oypsina inhserens, Schultze, sp. 



Acervulina inhserens, Schultze, 1854, Organ, der Polythal., p, 68, pi. vi. 



fig. 12. 

 Tinoporus lucidus, Brady, 1870, Edinburgh Catalogue, p. 8. 

 Generally distributed. 



Family X. NUMMULINID^. 



Sub-family 1. Pusulininae. 



Sub-family 2. Polystomellinae. 



NoNioNiNA, d'Orbigny, 



Nonionina asterizans, Fichtel and Moll. 



Nautilus asterizans, Fichtel and Moll, 1803, Test. Micr., p. 37, pi. iii. 



figs. e-h. 

 Nonionina asterizans, Brady, 1870, Edinburgh Catalogue, p. 8. 



Since becoming better acquainted "with the typical Nonionina aster- 

 izans, through the ' Challenger ' collections, I have had considerable doubt 

 whether the species has any claim to a place in the British list. The 

 British specimens which have come under my notice have all been 

 minute, and their characters ambiguous ; and I am inclined to think 

 they might generally be referred either to N. depressula on the one 

 hand, or N. stelligera on the other. Of the distribution of N, asterizans 

 as distinct from these two forms there is no satisfactory information. 



Nonionina depressula, Walker and Jacob, sp. 



Nautilus depressulus, Walker and Jacob, 1798, Adams's Essays, Kan- 



macher's ed., p. 641, pi. xiv. fig. 33. 

 Nonionina umbilieatida, Williamson, 1858, Eec. For. Gt. Br., p. 97, 

 pi. iii. figs. 70, 71. 

 „ crassida, Id., Ibid., p. 33. 



Generally distributed ; one of the commonest Microzoa of shallow 

 pools and estuaries, and of brackish water. 



Nonionina umbilicatula, Montagu, sp. 



Nautilus umbilicatulus, Montagu, 1803, Test. Brit., p. 191 ; — Suppl., 



p. 78, pi. sviii. fig. 1. 

 Nonionina barleeana, Williamson, 1858, Eec. For. Gt. Br., p. 32, pi. iii, 



figs. 68, 69. 

 Widely distributed ; afi"ecting much deeper water than the last-named 

 species. 



