the Nomenclature of the Foraminiftra. 2K) 



South Seas at llawack ; fossil at Castcl-Arquato." (Medi- 

 terranean, Soldani.) 



A compactly made TrilocuUna, of the angular type, Ijiit 

 lacking tnc equilateral regularity of T. tricarinata and T. 

 trigonula. 



145. TrilocuUna reticulata, D'Orb. PI. VTTL fig. 18. 



'* Frumentaria reticulata-^' Soldani, Testae, vul. i. pi. 3. p. 233, pi. 159. 

 figs, bb, cc. D'Orb. op. cU. p. 299. no. 9. 



" ILih. Kecent in the ^[editervancan, at the Island of St. 

 Helena, and Shark Bay, Australia." 



If there be any value of subgeneric sort in tlie number of 

 visible chambers, the specimens indicated by these figures 

 belong to QuinquclocuUna rather than Trilocullna. 



146. TrilocuUna inflata, D'Orb. PI. VIII. fig. 16. 



" Frumentariuiu nautiliforme ;" Soldani, Testae, vol. i. pt. 3. p. 233, pi. 1.59. 

 fig. aa. D'Orb. op. cit. p. 300. no. 10. 



" Hah. Recent in the Mcditen-ancan ; fossil in the neigh- 

 bourhood of Uax, of Bordeaux, and of Soissons, and at Castel- 

 Arquato." (Isola del Giglio, Mediterranean ; and llimini, 

 Adriatic, Soldani.) 



Apparently an irregular loose-growing Qm'nqueloculina j 

 but it might with almost equal justice be placed under D'Or- 

 bigny's genus llauerina. Well-developed specimens of this 

 latter genus ai*e very rare in a recent condition ; whilst ill- 

 grown Quinqueloculince, like the figures, are common in lit- 

 toral sands and muddy shallows. 



147. TrilocuUna tricostata, D'Orb. PI. VIII. fig. 20. 



" Frumentaria fcemculion y' Soldani, Testae, vol. i. pi. 3. p. 229, pi. lo4. 

 fig. r. D'Orb. op. cit. p. 300. no. 21. 



" Ilab. Fossil in the neighbourhood of Paris." (Mediterra- 

 nean and Adriatic, Soldani.) 



Apparently a young or few-ribbed specimen of Quinque- 

 loculina indchdla. D'Orbigny, in liis Vienna-Basin Mono- 

 graph, figures a beautiful example of the same form under the 

 name of Q. JosepMna. When the number of costre modifies 

 to any extent the general morphological characters of the test, 

 it may become a character of some subordinate value ; but, 

 taken by itself, it entirely breaks down as a specific or even 

 varietal distinction. 



