FAUNA OF PENIKESE ISLAND. 



23 



Information of similar purport has been given me by Professor 

 Cornelia M. Clapp, and Mr. Samuel E. Cassino, others who 

 worked in the old laboratory on Penikese. 



It is of particular interest that the only species described 

 from Penikese (of which record has been found) is one of those 

 relatively rare forms of Crustacea, the branchiopods, that it 

 should bear the name of the great teacher, and that the description 

 should have been published in the second and final year of the 

 original laboratory. The species is Eulimnadia agassizii Packard 

 (1874);^ it" seems never to have been collected elsewhere. 



In later years the island has been visited at various times by 

 collectors and specimens have been deposited in several museums ; 

 but such collecting was done incidentally or in course of trips 

 to various islands, and, almost invariably, without special 

 publication. An exception is found in the paper by A. P. Morse 

 entitled ''Notes on the Orthoptera of Penikese and Cuttyhunk," 

 appearing in Psyche, Vol. 7, p. 179, December, 1894.2 



Among other naturalists who have submitted specimens from 

 Penikese to various museums are J. P. Moore, Manton Copeland. 

 Alexander Forbes, and J. T. Nichols. The following notes are 

 quoted from a letter of Dr. Moore to the editor; ''In 1892 and 

 again in 1895, I collected in a small pond on Penikese two species 

 of leeches, Helohdella stagnalis, and Erpobdella punctata. A few 

 years later I again visited the island and think that I found 

 leeches, but cannot find the record. Leeches are so easily 

 carried by the aquatic birds that introduction is readily accom- 

 plished and one may expect to find other species. Even if all 

 of the leeches should be destroyed by a prolonged period of 

 drying of the small pools, the same or other species could be 



1 Packard, A. S. In Sixth Annual Report of the Peabody Academy of Science, 

 Salem, Mass., 54, 1874. 



In a later publication Packard says: 



"About 100 females, mostly with eggs, occurred in a small pool of fresh water 

 on Penikese Island, Buzzard's Bay, Aug. 27, 1873, collected by Mr. Walter Faxon. 

 Upon examining the pool the following July or August (1874), the young, about a 

 line in length, were found, but the pool subsequently dried up." (Quoted from 

 "A Monograph of the Phyllopod Crustacea of North America, with remarks on 

 the Order Phyllocarida," 12th Annual Report of the U. S. Geological and Geo- 

 graphical Survey of the Territories (for 1878), pages 295-590; Washington, 1883. 



2 1 am endebted to Mr. C. W. Johnson for reference to the paper on Orthoptera. 

 The species collected on Penikese are listed in another place. Editor. 



