40 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 66 
member of the museum staff. During the course of these explora- 
tions, very large series of land shells have been secured, giving to 
the Museum by far the largest and most complete collections in 
the world of that exceedingly rich and interesting mollusk fauna. 
Practically the entire range of the Organos Mountains, the Sierras 
of western Cuba, had been explored by representatives of the 
museum, but there still remained untouched three localities of 1m- 
portance. These were, (1) the extreme eastern prolongation of 
the Sierra de los Organos, or that region known upon Cuban maps 
as “Loma de Cuzco” and ‘“ Guayajabon.” This region furnished 
the types of several of the first described mollusks of Cuba but has 
Mr. Henderson’s yacht Eolis in Florida waters. 
Photograph by Henderson. 
Fic. 40. 
been neglected by all subsequent collectors. (2) The region about 
“Rangel,” one of the most famous of type localities in Cuba, and 
(3) that section of the Organos Mountains lying between Rangel 
and the Taco Taco River Gorge and the town of San Diego 
de los Banos. 
In May and June, Mr. Henderson and Dr. Paul Bartsch, curator 
of marine invertebrates of the Museum, spent a month exploring 
these three regions. For most of the trips they were accompanied 
by Dr. Carlos de la Torre and Sr. Rodriquez of the University of 
Havana. The many localities and stations occupied were thoroughly 
collected and fine series of mollusks and other organisms were 
brought home. 
