676 REPORT—1863. 
Suborder THALASSOPHILA. 
Fam. Siphonariade. 
$113. Stphonaria lecanium, Phil.: [Var.=S. mawra, Shy. Var. palmata, Cpr., is 
ossibly distinct. Mazatlan, £. B. Philippi, Reigen; Acapulco, Jewett ; 
ape St. Lucas, Xantus. | 
+114. Stphonaria equilirata, Cpr.,[ = S. equilorata, Rye. Mazatlan, Reigen; C. 8. 
Lucas, Xantus; Margarita Bay, very fine, teste Pease. | 
$115. [Siphonaria thersites, Cpr. Neeah Bay, Swan. ] 
Doubtful, spurious, and extralimital species :— 
Helix aspersa, Mill. “Sta. Barbara,” Kellett and Wood. [Imported.] 
Helix arbustorum, Linn. 
Helix Sagraiana, D’Orb. [Certainly Cuban. | 
Helix “ Sandiegoénsis, Lea.” Gld., P. R.R., vol. v. p. 331, “No such sp. de- 
scribed,” teste Binney. 
Helix peregrina, Bose. 
Bulimus Humboldti, Rye. ?“ Mazatlan.” 
Bulimus Laurentit, Shy.“ Sitka:” probably Sitcha in San Salvador, teste 
Binney. 
Melania {| Bulimus| striata, Perry. [Vide anted, p. 520. 
Suceinea aperta, Lea,= 8. rotundata, Gld. Sandwich Is., U. 8S. Evpl. Exp. 
tPhysa Maugeria, Gray, teste Woodward, Manual, p. 171; but probably equa- 
torial S. America. 
tSiphonaria amara, {Nutt. Admitted into the list by Mr. Binney, on the autho- 
rity of Rye., as of Nutt.; but it lives on the Sandwich Is. ; teste Pease, New- 
comb, U.S. £. £.). 
116. The Smithsonian Institution has lately issued a “ Descriptive Cata- 
logue of the species of Amnicola, Vivipara, Bithynia, Valvata, and Ampul- 
laria,” by Mr. W. G. Binney. It is abundantly illustrated with outline- 
woodcuts, and contains the synonymy corrected from all the accessible types. 
Dr. Stimpson is at present engaged in dissecting the molluses; but none of 
his investigations have yet been published. The following is a réswmé of the 
West Coast species, from a proof kindly furnished by the author. 
Page. Fig. 
4, Amunicola lenginqua, Gld., Bost. Proc. vy. 180. Colorado Desert, Blake. 
5. 6. Amnicola protea, Gld., Bost. Proc. y. 129. Colorado Desert, Blake, Webb. 
12, 45, Vivipara, Lam.,= Paludina, Lam. [This genus, so fine and plentiful east 
of the Rocky Mountains, does not appear on the west. | 
44, ,, Paludina Nuttalliana, Lea, Trans. Am. Phil. Soe. vi. p. 101, pl. 23. f. 109. 
[In text. In later manuscript list, this name appears as a synonym of | 
Fluminicola (Stimps., MS.) Nadtallit, Lea, = Amnicola Nuttalliana, Cp., 
Minn. Rep. p. 374,= Leptoais Nuttallii, Hald.,= Anculosus Nuttalliz, Reve. 
?-+ Paludina seminalis, Hds. (p. 46, f. 81), [P+ P. Hindsii, Baird.] Co- 
lumbia River, Nettall, Cooper; Upper des Chutes Riy. and Klamath 
Lake, Or., Newberry; Roques R., Or.; Sacramento R., Hinds; Brit. 
Columbia, Lord; Canoe Creek and Pitt River, Cal., Newberry. 
46. 80. Bithinia nuclea, Lea, = Paludina n., Trans. Am. Phil. Soe. vi. p. 91, pl. 25. 
f.105 [in text. In later MS. list, appears as synonym of | Fluminicola 
virens, Lea (Paludina v., Lea; Leptovis v., Hald.),-+-Paludina nuclea, Lea. 
Wahlamat River, Oregon, Nidtall | Willamette, MS. list]. 
The following are added by Mr. Binney in his later MS. list :— 
Valvata virens, Tryon. Clear Lake, Calif. [The Smithsonian duplicates have 
been unfortunately distributed under the name “ V7. sincera, Say,” which had 
been previously given to the specimens, and under which they are quoted in 
the Check-List of 1860, no, 456, According to Mr. B., M%. sincera is “ like 
