62 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



The two shore species from Taboguilla are well-known Panamic forms. 

 The two from Easter Island group with species known from the South 

 Pacific and Indian Ocean. The species from Manga Reva belong to the 

 fauna of the Southwestern Pacific and Indian Ocean. 



The literature on the deep-sea Madreporaria of the Eastern Pacific is 

 almost nil. Moseley, in his "Deep-Sea Corals" obtained by the "Chal- 

 lenger" Expedition, described a few, and Dr. von Marenzeller has pub- 

 lished a report on the " Stein- und Hydro-Korallen " collected off the 

 west coast of Central America to the Galapagos, to the west coast of 

 Mexico, and in the Gulf of California, by the "Albatross" in 1891. 1 He 

 records eight species of Madreporaria, five of which are specifically 

 identified, viz. : — 



Desmophyllum cristagalli M. Edw. & H. 

 Caryophyllia diomedeae von Marenzeller. 

 Madrepora oculata Linne. 

 Cladocora arbuscula (Le Sueur). 

 Bathyactis symmetrica (Pourtales). 



I am able to add four species. There is a considerable quantity of 

 unstudied deep-sea material from the Pacific coast of America in the 

 United States National Museum, but I have not as yet been able to 

 describe it. However, I hope to do so within a short time in connection 

 with monographing the Tertiary coral faunas of the Western United 

 States. The Hawaiian Expedition of the "Albatross," 1902, was fortu- 

 nate in procuring a considerable collection of deep-sea Madreporaria. 

 I have described that collection for the United States Bureau of Fisheries, 

 and found it very interesting for comparison with the faunas of the 

 Southwestern Pacific and Indian Ocean on one side and that of Western 

 America on the other. 



These notes are presented to show the meagerness of our knowledge 

 of the deep-sea Madreporaria of the greater portion of the Pacific 

 Ocean. We do not yet know enough to undertake the discussion of 

 the broader problems of geographic distribution. The collection made 

 by the "Albatross" in 1904-1905, though small, is interesting, and im- 

 portant, as it makes a distinct addition to our knowledge of Pacific 

 deep-sea Madreporaria. 



The Panamic specimens are omitted from the following discussion of 

 the species. 



» Bull. Mus. Comp. Zool., 43, p. 75-87, 3 pis., 1904. 



