On the Nomenclature of the JPorarninifera. 429 



specimens of C. insignis, — ajjpvoaching, therefore, in nowise to 

 the stout bulbous form of the Moulraein shell. 



In order to allow a comparison, I add Gould's published de- 

 scription, in which several material characters are omitted : — 



" Clausilia Vespa. Testa sol Ida, sinistrorsa, vespEeformis, deflecta, 

 Isevis, intense rufa ; anfr. 6, anteriori raptim attenuata, proxima 

 corpulenta, apicalibus cite decrescentibus ; sutura impressa, vix 

 marginata : apertura ovata ; columella biplicata ; peritremate late 

 reflexo, rufo. 



"Long. 1, lat. -^ poll. Inhabits Tavoy. Rev. F. Mason. 



"This very singular wasp-like shell is allied to C. insignis, 

 Philippii, C. Cochinchinensis, &c., but distinguished from all by 

 its peculiar form." 



XLIV. — On the Nomenclature of the Foraminifera. 

 By W. K. Parker, Esq., and Prof. T. R. Jones, F.G.S. 



Part X. — The Species enumerated by UOrbigny in the ' Annales 

 des Sciences Naturelles,' vol. vii. 1826. 



We have now to take in hand a critical review of the many 

 species and varieties of Foraminifera enumerated by D'Orbigny 

 in his " Tableau Methodique des Cephalopodes,'' published in 

 the 7th volume of the 'Annales des Sciences Naturelles/ 1826. 

 The principles on which D'Orbigny grouped these Microzoa as 

 '* Cephalopoda Foraminifera" were long since known to himself 

 to be erroneous ; and the errors in his classitication have been 

 fully pointed out by Dr. Carpenter*. But we must never forget 

 that D'Orbigny laboriously and conscientiously worked out an 

 enormous mass of material, and reduced it to such order that 

 naturalists could recognize hundreds of organic forms previously 

 either quite hidden or vaguely known, and could advantageously 

 add the results of their own research to his classified material, 

 although his plan of arrangement f was artificial and defective. 

 By his careful, though imperfect, elaboration of what earlier 

 observers had done towards the elucidation of specific forms of 

 Foraminifera, and his illustration of many of the most important 

 species by means of a hundred large plaster models, and by the 

 eight plates accompanying the ' Tableau Methodique,' he opened 

 the way towards a knowledge of these little creatures, thousands 

 of which he had himself collected from sea-sands of every region 

 and from many fossil strata. He adopted many already pub- 

 lished specific determinations, often correcting the generic rela- 



* Introduction to the Study of the Foraminifera, 1861, Ray Soc. 

 t Based on the arrangement of the chamhers of the shell. 



