ON MOLLUSCA OP THE WEST COAST OF NORTH AMERICA 295 



Page. 

 94. From Central America . . Helix Ghiesbreghti, griseola, labyrinthus, plicata, 

 quadridentata, Euryomphala, quinquestrigata. 



94. From Real Llejos spiiulata, Nystiana. 



94. From Panama Antoni, uncigera. 



Many of the species quoted from Mexico and Central America probably 

 belong to the east side of the mountain range. Tn the same work, pp. 158- 

 160, are described the following land shells, brought from the Mexican 

 Republic by Liebmann. They are probably from the eastern side : — 



158. Helix caduca, Pfr. 

 158. Bulimus Liebmanni, Pfr. 

 158. Achatina coronata, Pfr. 



159. Achatina Liebmanni, Pfr. 



159. streptostyla, Pfr. 



1 59. Cylindrella Ldebmanni, Pfr. 



In the Zeit. f. Ma), for 1844, 184-5, occur the following :— 



Ampullaria malleata, Jonas. Tabasco, Mexico. 

 Helix Buffoniana, Pfr. Rio Frio, Mexico. 



lavis, Pfr. Cahfornia, Hinds. 



areolata. Sow. MS. California, Hinds. 



Haliotis Kamtschatkana, Jonas. Near Island of Oonalaszka. 



In the Zeit. f. Mai. IS*?, pp. 1, 2, Dr. Menke describes the two following 

 species, brought by Liebmann from Mexico : — 

 Cylindrella teres, Mke. Prov. of Puebla. | Cylindrella Pfeifferi, Mke. Tehuacan. 



In the Zeit. f. Mai. 1847, pp. 93-96, Dr. Philippi describes the following 

 freshwater shells, brought from Mexico and Central America by Largilliert 

 and Liebmann : — 



No. 32. Unio cyrenoides, Phil. Lake Nicaragua (Larg.). 



„ 34. ■ Aztecorum, Phil. Mexico (Lieb.). 



„ 35. Mexicanns, Phil. Mexico (Lieb.). 



„ 36. Liebmanni, Phil. Mexico (Lieb.). 



In the mixed collections of shells described by Philippi in the Zeit. f. Mai. 

 1848, 1849, occur the following species : — 



1848. 



No. 



Cerithium{Potamides) Hegewischii,Ph. M.exico, Hegewisch. Resembles 



Cerithidea varicosa. Sow. [but it is not stated in which ocean it was 



found.] 

 Trochus (Pkorcus) Panamensis, Phil. Panama, E. B. Philippi. 

 Adeorbis scaber, Phil. Panama. Found in Avicula margaritifera by 



E. B. Philippi. 

 Anodonta cornea, Phil. Nicaragua, Largilliert. 



atrovirens, Phil. „ „ 



Nicaragua, Phil. „ „ 



Bulla Panamensis, Phil. Panama, E. B. Philippi. 

 Cerithium filosum, Phil. California. — Mus. Largilliert, 

 Donax Panamensis, Phil. Panama, E. B. Philippi. 

 Kellia pulchra, Phil. West coast of America. 

 Litorina parvula, Phil. Panama, E. B. Philippi. 



phasianella, Phil. „ „ 



Mactra velata, Vhi\. „ „ '?"AnMuliniaexalbida,Gra,y." 



Petricola robusta, Phil. „ „ In Avicula margaritifera. 



[This fortunately appears to be one of the many forms of Petricola 



robusta. Sow.] 

 Phasianella perforata, Phil. Panama and Payta, E, B. Philippi. 

 Tellina Panamensis, Phil. Panama, E. B. Philippi. 

 Unio nuculinus, Phil. Nicaragua, Largilliert. 



