26 Panama Shells geographical 



the curiosity to know more and to ifnow more accurately. 

 An expedition of circumnavigation, with the specific object of 

 investigating the distribution of the testaceous Moilusks, 

 through several tropical marine provinces, would accomplish 

 more than the discovery of many new species : it would de- 

 termine the distribution of a much greater number, in a 

 manner which would justly inspire confidenoe. 



Index of Places in the Pacific, which are mentioned in the Catalogue of Panama 



Shells. 



Acapulco. A town and harbor, in Mexico ; it is tlie principal and best port of 

 Mexico on the Pacific; lat. 16° 55' N.; long. 100° 54' W. 



Annaa. An island in Polynesia. Probably Anna or Aana, or Chain Island ; 

 lat. 17° 20' S. ; long. 146° 40' W. 



Arica. In Peru. 



Atacamas. A seaport in Equador, on the Pacific. 



California. Tho boundary botwoen Upper and Lower Oalifornia is near lat. 

 88° N. Tho waters of Upper California, tliureforo, belong wholly to the tempe- 

 rate Fauna, and those of Lower California almost wholly to the tropical Fauna. 

 Tho Fauna of tho Gulf of California is tropical, at least as far as Guaymas. The 

 importance in zoolo.y of distingoisliing between Upper and Lower California, in 

 statements of habitat, is therefore obvious. New Albion was a name given by 

 Sir Francis Drake, to an extent of coast which includes upper California and Ore- 

 gon, and is ofl en used more indefinitely. 



Callao. The port of Lima, capital of Peru ; lat. 12° 2' S. ; long. 76° 58' W. 



Caraccas, Bay of. A small bay on the coast of Guayaquil, next north of Cape 

 San Lorenzo, between i° and 1° S. lat.. It is not mentioned in any of the Gazet- 

 teers whicli we have consulted. It is also called Manta Bay. 



Central America. This name is used very indefinitely by some conchological 

 writers. It includes on the Pacific, only Guatemala, San Salvador, Nicaragua, and 

 Costa Kica, from about lat. 9° N. to 15° N. The whole country was called Guate- 

 mala before its independence. 



Cerro Azul. A town in Peru, in the department of Lima. 

 ( Charles I. One of the Gallapagos, at the southwest part of the group. 



Chatham I. One of the Gallapagos, at the southeast part of the group. 



Chili. Its northern boundary, about 24° 20' S. lat., is not far from the south- 

 ern limit of the tropical Fauna. 



Chiloe. A large island in the southern part of Chili, between 42° and 44° S. 

 lat. 



Chiriqui. A town in Veragua, Central America, on the Pacific side ; lat. 8° 

 80' N. ; long. 83° 28' W. 



