PLATE XX. 
Natica, section A. = Euspira in part. 
Fig. 
1. Natica, species (cast). Northampton Sand, Duston. British Museum. 
(Page 261.) 
2. Natica adducta, Phillips, var. Oppelensis, Lycett. Cotteswold Sands, Nails- 
worth. Jermyn Street Museum. Type. (Page 258.) 
3. Natica adducta, Phillips. Dogger, Blue Wyke. Scarborough Museum. 
(Page 257.) 
4. The same. Pea-grit, Leckhampton. My Collection. 
5. Natica adducta, Phil., var. glohata. Goncavus-hedi, Bradford Abbas. My 
Collection. (Page 259.) 
6. The same. Lower Trigonia grit, Leckhampton. Jermyn Street Museum. 
7. Natica proxima, Hudleston (var. of Natica Lorieri). Dogger, Blue Wyke. 
Woodwardian Museum. (Page 260.) 
8. Natica, cf. Lorieri, d’Orbigny. Cold Comfort, near Cheltenham. My Collec- 
tion. (Page 259.) 
9 a. Natica Lorieri, d’Orb., var. canina, Hudleston. Dogger, Blue Wyke, Wood- 
wardian Museum. 9 h. Another specimen. Dogger, Blue Wyke. 
My Collection. (Page 260.) 
10. Natica suhelegans.” Parldnsoni-zone, Bradford Abbas district. My Collec- 
tion (Buckman). (Page 261.) 
11 a. Natica Dundriensis, Tawney. Base of Humphriesianus-zone, Oborne. My 
Collection (Buckman). 115, 11c. Specimens of Natica Dundriensis 
from the iron-shot Oolite of Dundry showing reticulate structure. 
Woodwardian Museum. (Page 262.) 
12. Natica Hulliana, Lycett. Nailsworth. Jermyn Street Museum. Type. 
(Page 262.) 
13 a. Natica Bajocensis, d’Orbigny. ParMnsoni-zone, Burton Bradstock. 13 h. 
Another specimen (narrower variety, approaching N. Calypso, d’Orb.) 
Parkinsoni-zone, South Dorset. Both from my Collection. (Page 263.) 
14. Natica “ punctura,’’ Bean. Dogger variety (? N. Bajocensis). Blue Wyke. 
Woodwardian Museum. (Page 264.) 
15. Natica protracta, sp. TiOY. Par^msom'-zone, Bradford Abbas. My Collection 
(Buckman). (Page 265.) 
16. Natica canaliculata, Morris and Lycett. Upper Pisolite, Longfords. My 
Collection. (Page 265.) I 
17. ? Natica cincta, Phillips. Young specimen Oolite Marl, Leckhampton. ' 
Jermyn Street Museum. For adult specimens see Plate XXI, figs. 3 j 
and 4. (Page 266.) , 
I 
I 
I 
Natica, section B.=:Mammillated. 
18 a, 18 5. Natica, cf. Michelini, d’Archiac. Two specimens, Inferior Oolite, 
Nailsworth. Jermyn Street Museum. , (Page 269.) | 
