EXPLANATION OF PLATE XXXIV. 
PAGE 
Fig. i. Fusus toros us Ortm. ......... 
Patagonian beds ; mouth of Santa Cruz River. 
Front view, last whorl broken away. 
Fig. 2. Chrysodomus cancellatus (Ortm.). ...... 
Patagonian beds ; mouth of Santa Cruz River. 
2 a. Front view of shell. 
2 b. Part of surface enlarged. 
Fig- 3 - Chrysodomus pilsbryi (Ortm.). ........ 
Patagonian beds ; mouth of Santa Cruz River. 
Front view of shell. 
Fig. 4. SlPHONALIA DOMEYKOANA (Phil.). ....... 
Patagonian beds ; mouth of Santa Cruz River. 
Front view of a large, complete individual. 
Fig. 5. SlPHONALIA NOACHINA (Sow.). ........ 
Patagonian beds ; Darwin Station, San Julian. 
Fragment of a very large individual, front view. 
Fig. 6. Murex hatcheri Ortm 
Patagonian beds ; Darwin Station, San Julian. 
Front view of shell. 
Fig. 7- Trophon patagonicus (Sow.). ....... 
Patagonian beds. 
ya. Large individual, somewhat damaged, corresponding closely 
to the typical form, figured by Sowerby ; Darwin Station, 
San Julian. 
yb. Individual of medium size, intermediate between the typical 
form and v. Ihering's T. laciniatus santacruzensis. Oven 
Point, San Julian. 
yc. Individual of medium size, approaching closely v. Ihering’s 
T. laciniatus santacruzensis. Oven Point, San Julian. 
yd. Fragment of young individual, showing distinct spiral sculp- 
ture. Oven Point, San Julian. 
Fig. 8. Trophon laciniatus Mart. . ....... 
Cape Fairweather beds ; Cape Fairweather. 
8 a. Front view of typical form. 
8 b. Front view of transitional form toward var. inornatus. 
8^. Front view of var. inornatus Plsb. 
Fig. 9. Urosalpinx elegans Ortm. ........ 
Patagonian beds ; mouth of Santa Cruz River, 250' above high tide. 
Front view of shell. 
223 
209 
210 
21 1 
213 
214 
215 
21 7 
219 
