REUSS AND FRITSCh’s MODELS. 
75 
There were a few important differences as to the generic standing of some 
forms expressed in this critique, especially as to no. 13 (of the nos. applied in 
1861), no. 58, no. 72 (but not held afterwards by the critics), nos. 73 and 74 
(in which case the critics were decidedly wrong), no. 85, and no. 95. Nos. 78, 79, 
and 80, op. cit. p. 40, stand opposite to wrong typical species, owing to an upward 
slip of the printer’s type. 
In the following list the geological stages to which the species belong have 
in a few instances been corrected from notes by the authors of these Models. 
The Numbers given with the Models in 1861 are consecutive (1-100) with the 
species as enumerated in the following List. In 1865 the Nos. issued with the 
Models were those given in this List. 
I. Foraminifera with non-porous shells. 
A. With siliceous sandy shells. 
Nos. with the I. Lituolidea, Reuss. 
published 
Models in 
1865. 
2. Placopsilina irregularis , d’Orb 
1. ITaplostiche foedissima, Rss 
3. Haplophragmium injlatum, Rss 
70. irregulare (Rcem.) 
II. UvELLIDEA, Reuss. 
95. Valvulina triangularis, d’O 
4. Verneuilina spinulosa , Rss 
5. Tritaxia tricarinata (d’O.) 
y* | Ataxophragmium variabile , d’O 
98. Clavulina communis, d’O 
8. Gaudryina pupoides, d’O 
58. Bigenerina nodosaria, d’O 
71. Conulina conica, d’O. [Lituolid ?] 
84. Chrysalidina gradata, d’O 
B. With compact, porcellaneous, calcareous shells. 
I. SanAMULiNiDEA, Reuss. 
II. Miliolidea, Reuss. 
9. Cornuspira involvens, Rss. 
82. Uniloculina indica, d’O. . . 
10. Biloculina lunula, d'O. . . , 
81. Spiroloculina dilatata , d’O 
11. Triloculina gibba, d’O. . . 
99. Quinqueloculina, sp., d’O. 
12. Fabularia discolithus, Defr 
III. Peneroplidea, Reuss. 
61. Peneroplis pulchellus, d'O Recent. 
91. planatus (Montf.) „ 
14. Dendritina arbuscula, d’O „ 
Miocene. 
Recent. 
Tertiary. 
Miocene. 
Tertiary. 
v 
Eocene. 
Eocene. 
Miocene. 
Cretaceous. 
Chalk and Gault. 
Tertiary. 
I Upper and Middle 
) Chalk. 
Recent. 
Cretaceous. 
Geological stages 
for the Specimens 
figured. 
. Upper Chalk. 
• yj 
Chalk.’ 
