Febroaey 13, 1903.] 



SCIENCE. 



249 



The paper contained notes on a collec- 

 tion of crustaceans from the caverns and 

 coastal streams of Cuba submitted to the 

 author by Dr. C. H. Eigenmann, of the 

 State University of Indiana. There are 

 altogether fourteen species, of which three 

 — Cirolana cubensis, Palmmonetes eigen- 

 manni and Palcemonetes cubensis— are new 

 to science. 



Cirolana cubensis and Palcemonetes 

 eigenmanni are spelean species exclusively 

 and have the usual characteristics of such 

 forms— they are slender, transparent and 

 blind. Full descriptions and figures of 

 the new species were given. Under the 

 notes on Cambarus cubensis, attention was 

 called to some rather unusual characters 

 shown by the specimens collected by Dr. 

 Eigenmann which may by future work be 

 shown to mark a distinct species. 



The collections were made in the early 

 spring of 1902, through the assistance of 

 a grant of money by the American Asso- 

 ciation for the Advancement of Science. 



Evolution of the Proboscidea in North 

 America: H. F. Osborn, American Mu- 

 seum of Natural History, New York city. 

 From the oldest certainly known form, 

 Pakeomastodon of Egypt, through the 

 Lower Miocene M. angustidens of Europe, 

 the Proboscidea migrated to America. In 

 the Middle Miocene at least three and pos- 

 sibly four contemporary phyla appear in 

 this country. The first phylum, distin- 

 guished (1) by laterally compressed upper 

 tusks, (2) short lower tusks, (3) narrow 

 molars with a single trefoil, includes the 

 Middle Miocene M. productus Cope and 

 the Upper Miocene and Pliocene M. flori- 

 danus Leidy, M. obscurus Leidy, M. tropi- 

 cus Cope, M. serridens, M. rugosidens and 

 possibly M. precursor Cope. The second 

 phyliun, with (1) round upper tusks and 

 (2) a double trefoil on long narrow mo- 

 lars, includes the Upper Miocene If. cam- 



pester Cope and possibly M. humboldtii 

 of South America, a Pliocene or Pleisto- 

 cene form. The third phylum, distin- 

 guished by (1) long lower tusks, with 

 enamel in the early stages, (2) laterally 

 compressed upper tusks, (3) short pos- 

 terior molars, includes M. brevidens Cope 

 (the oldest species known in North Amer- 

 ica), M. euhypodon Cope from the Upper 

 Miocene and possibly M. shepardi Leidy 

 from the Pliocene. In the Pliocene ap- 

 pears the highly specialized M. (stegodon) 

 mirificus Leidy, with (1) round upper 

 tusks, (2) double trefoil, (3) only four 

 grinding teeth altogether. This may con- 

 nect with the M. campester series, or it 

 may represent a new arrival from Europe. 

 The early Pleistocene includes two superb 

 elephants, E. columbi of the Middle and 

 Southern States, and E. imperator of the 

 Southwest. Both these species can now 

 be clearly distingiiished from the true 

 northern mammoth, E. primigenius. The 

 paper is illustrated by numerous drawings 

 and photographs. Acknowledgments were 

 made especially to Mr. F. A. Lucas. 



Primary Division of the Beptilia into Two 

 Great Groups Phylo genetically Distinct: 

 Henry F. Osboen and J. H. McGregor, 

 Columbia University. Presented by 

 Henry F. Osborn; will be published 

 elsewhere. 



Some Questions as to the Arrangement of 

 the Primates: B. G. Wilder, Cornell 

 University. 



This paper embraces four parts: 

 {a) A provisional dichotomous arrange- 

 ment of the Primates in which the main 

 stem, terminating in man, gives off 

 branches representing successively the 

 lemurs, the marmosets, the New "World 

 monkeys, the Old World monkej's, the 

 gibbons and the giant apes. Of this last 

 group one subdivision includes the two 

 African apes, the gorilla and chimpanzee, 



