466 Messrs. W. K. Parker and T. R. Jones on the 



Achatina Facula, B. 



Testa turrito-ovata, tenui, leevigata, irregulariter striatula, translu- 

 cente, nitida, pallide fulvo-cornea ; spira turrito-conica, apice ob- 

 tuso, sutura profundiuscula, irregulariter vix crenulata ; anfracti- 

 bus 7^, subconvexis, ultimo f testae vix attingente, antice leviter 

 remote plicato-striato ; apertura subverticali, semiovali, columella 

 breviter valde arcuata, callosa, basi oblique truneata, peristomate 

 recto, tenui, marginibus callo tenui junctis. 



Long. 18, diam. 8 mill. ; apert. 7 mill, longa, 4^ lata. 



Syn. Ach. Perrotteti, Conch. Icon. pi. 21. f. 102, nee Pfr. 



Habitat in montibus Nilgherries, T. Jerdon. 



Intermediate in form between A. Oreas and A. Hugeli, Pfr., 

 this sbell was, in tbe ' Concbologia Iconica/ confounded with 

 A. Perrotteti, Pfr., which proved to be a more elongated form, 

 of which A. Nilagirica, B., fig. 87 of the same plate, is a length- 

 ened variety. Pfeiffer cites fig. 102, with a mark of doubt, under 

 A. Perrotteti, in the third vol. of his Manual. 



The number of Nilgherry species of Achatina now amounts 

 to nine, or two less than those described from the Island of 

 Ceylon. 



May 1, 1860. 



Note. An Achatina, described (without a name) by Capt. T. Button in 

 the 3rd vol. of J. A. S. Calcutta, was found by him between Mhow and 

 Nimuch. It equals A. tenuispira in length, and appears to be a distinct 

 species. 



L. On the Nomenclature of the Foraminifera. 

 By W. K. PARKER, M. Micr. Soc., and T. R. JONES, F.G.S. 



[Continued from p. 298.] 



19. Spirolina, Ann. Mus. v. p. 244; Hist. An. s. Vert. vii. 

 p. 601. Spirolinites depressa. Ann. Mus. v. p. 245 ; viii. p. 62, 

 f. 14 ; Hist. An. s. Vert. vii. p. 602, No. 1. " Fossil ; Grignon." 



This is a Peneroplis planatus, F. & M. sp. The right-hand 

 figure is nearly orbicular, and may represent a Peneroplis in its 

 Dendritine condition ; the other is more complanate, with out- 

 spread chambers. 



20. Spirolinites cylindracea. Ann. Mus. v. p. 245. No. 2; 

 viii. pi. 62. f. 15 ; Tabl. Enc. Meth. pi. 465. f. 7 a-c, and pi 466. 

 f. 20, b; Hist. An. s. Vert. vii. p. 603, No. 2. "Fossil; 

 Grignon." 



Endless modifications of the constricted and crozier-like forms* 



* Spirolina stenostoma, Deshayes (in Lyell's 'Principles/ pl.4.f. 15-18, 

 and ' Manual,' 5th edit. fig. 237), is one of these lituate varieties, narrow 

 and somewhat flattened. 



