1886.] PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 257 



but luariue collecting was limited to the littoral zouo and the shallow 

 waters near shore. The Echini were described by Mr. Alexander Agas- 

 siz in the following paper : 



Synopsis of the EcMnoids collected by Dr. W. Sfcimpson on the North Pacific Ex- 

 ])loriug Expedition, under the command of Captains Einggold and Rodgors. Jour. 

 Acad. Nat. Sci. Phila., 1863, pp. 353-361. 



Forty-three species in all were enumerated, and a few new species 

 described. Two of these species have since been regarded as varieties 

 of others contained in the same list, reducing the total number to 41. 

 Of this collection only 27 species are now positively known to be in the 

 iS^ational Museum, although specimens of some of the other species have 

 since been received from other sources. Following is a corrected list 

 of the species mentioned by Mr. Agassiz, those in italics being still in 

 the museum : 



riijjllacantlnis duhia. Temriopleurns Hardwickii. 



imperialis. Temnopleurus Reyuaudi. 

 Arhucia pustulosa. • toreumaticus. 



Diadema setosum. Microcfiplms maculatus. 



Centrostephanus Rodgersii. Mespilia glohuhis. 



Echinothrix turcarum. Phymosoma crenulare. 



Colobocentrotus atratus. Echinus angulosus. 



Mertetmi. Hipponoe variegata. 



Helerocentrotus mammillatns. Echinocyamus pusillus. 



Echinomeira lucunter. Fibularia auetralis. 



Farasalenia gratiosa. Laganum Putnami. 



StrongyJocentrotus depressus. Peronella decagonalis. 



Droiachiensis, Echinarachnius mirabilis. 



eurythrogrammuH. parma. 



gloitilosus. Echinodiscus Isevis, 



intermedius. Eotula Rumphii. 



nudus. Maretia alta. ' 



purpuratus. Lovenia subcarinata. 



tuhereulatua. Echinocardium australe. 



Sphoerechinua granularia. Paleostoma mirabilis. 

 pulcherrimus. 



During the past few years, very valuable contributions of Echini have 

 been made by Dr. W. H. Jones, U. S. N., from the islands of the Cen- 

 tral and Southern Pacific Ocean, and the west coast of South America, 

 including the Galapagos Islands. The collections received from Dr. 

 Jones have been mainly preserved in alcohol, and include many fine 

 and carefully prepared specimens. Several interesting species from 

 China and Japan have been received from Dr. F. C. Dale, U. S. N., and 

 Mr. P. L. Jouy, naturalists of the U. S. S. Palos, surveying in those 

 waters, and small collections have been donated from time to time by 

 other naval officers stationed in foreign countries. 



European materials have been obtained mostly by exchange with the 

 Bergen Museum, Norway, the Rev. A. M. Norman, of England, and Prof. 

 C. Mobius, of Kiel, Germany. 



The synonymy of the species of Echini has been published in such 

 detail by Mr. Alexander Agassiz that it has been deemed inexpedient 

 Proc. N. M. 86 17 October 13, 1 8 86. 



