282 
PATAGONIAN EXPEDITIONS : PALAEONTOLOGY. 
23. Py nila Carolina. 
24. Siphoncdia noachina. 
2 5 . Trophon patagonicus. 
26. Valuta gradlior. 
27. Balanus varians. 
28. G cry on peruvianus. 
fbase : San Julian. 
{top : Lake Pueyrredon. 
fbase: San Julian. 
{top: Sierra Oveja; Lake Pueyrredon. 
[base: San Julian; Lake Pueyrredon. 
{ top : Rio Chalia ; Lake Pueyrredon. 
[ base : San Julian. 
{ top : Rio Chalia. 
fbase : San Julian ; Lake Pueyrredon. 
( top : Rio Chalia ; Shell Gap. 
Jbase : San Julian ; Santa Cruz. 
I top : Lake Pueyrredon. 
We add the following species, which are either given as Suprapata- 
gonian by v. Ihering, Cossmann or Ameghino, but found in our collec- 
tion only near the base, or are given as Juliense by Ameghino or 
Patagonian by v. Ihering, but found in our collection at the top. 
Suprapatagonian species , found at the base : 
29. Crassatellites longior , Lake Pueyrredon, base. 
30. Amathusia angulata, Santa Cruz, at water’s edge. 
31. Urosalpinx p yr if or mis, Lake Pueyrredon, base. 
Patagonian species , found at the top : 
32. Mytilus cf. chorus, Rio Chalia. 
33. Tettina tehuelcha, Shell Gap. 
34. Psammobia patagonica. Rio Chalia. 
35. Martesia patagonica, Shell Gap, Lake Pueyrredon. 
36. Voluta dorbignyana, Rio Chalia. 
Finally, I give here the species which are recorded by v. Ihering as 
Patagonian and Suprapatagonian. 
3 7 . Nucula patagonica. 
38. Limopsis insolita. 
39. Cardita incequalis. 
40. Cardita patagonica. 
4 1 . Venus meridionalis. 
42. Infundibulum clypeolum. 
Of these 47 species, for which a distribution from top to bottom of the 
series is very probable, the following belong to Ameghino’s or v. Ihering’s 
characteristic fossils of their different subdivisions. 
4 3 . Crepidula gregaria. 
44. Natica secunda. 
45. Natica consimilis. 
46. Turritella breantiana. 
47. Cancellaria gracilis. 
