PROCEEDINGS OF THE NATIONAL MUSEUM. 175 



I 



permaueiit character and is itrescnt in tlic smallest as well as the larg- 

 est individuals. 



OLIVA ANGIILA'J'A, L a m a r c k. 



Two specimens. 



La Paz (No. 32420, U. S. N. M). Sta. Margarita Island (2 beach), 

 Albatross. Small examples sometimes exhibit a facies suggestive of 

 0. polpaster Duclos, or it may be said on the other side that o(;casional 

 heavy examples of 0. polpaster resemble young individuals of 0. 

 angulata. 



OLIVA SPLENDIDIILA, Sowerliy. 



Two specimens. Tres Marias. 



One of Mr. Fisher's specimens measured 2 inches in length. This 

 is an exceedingly beautiful as well as a rare species, and easily dis- 

 tinguishable from any other of the genus. Of the large and beautiful 

 Olira 2)orp]njrea, so highly prized by amateurs, and frequently used as 

 a mantel ornament, Mr. Fisher did not obtain any examples. It is quite 

 common, compared with sploididula. 



OLIVA SITHANUULATA. Philii.pi. 



Three specinums. La Paz; Mulege Bay. 



OLIVAXC'ILLARIA (A(iARONIA) TLS TACEA, L a in a r c k. 



Two examples. Gulf of (California (No. 32452, II. S. N. M.). 



OLIVKLLA (JRACILIS, Gray. 



Three young si>ccimcns, Mnlege Bay (No. 472.57, U. S. N. M.). 



<)LIVP:LLA I'NDATELLA, Lamaick. 



Five specimens. Altata (No. 47222, U. S. N. M.). 



OLIVELLA DAMA, M a w e. 



Numerous examples. 



Mulege Bay (No. 47230,11. S. N. M.); Los Animas Bay; Loreto; 

 Angeles Hay; San Lucas Cove; La Paz. 



OLIVELLA CYAXEA, R e «! v e. 



;= O. piielchaiia, Orbicnv, Reeve's Mouoji;., PL xxiv, rtgs 70", 70'', 70''. 

 Abundant, living. Tres Marias (No. 47254, U. S. N. M.). 



Family H A R p 1 1) i^: . 



HARPA CRENATA, S w a i u s <. u . 



[uot H. crenata Gray or H. crenata, Reevk, of authors.] 

 = H. scriha, Val. + R. gracilis, B. &, S. -f- H. rosea crenata, Gray. + Buccinum 

 roseum, Wood. + Buccinum minus, Wood; [not Ear pa minor, Mart.] + S. 

 RivioUna, Lesson, -f H. rosea, var. Kiexer. -{- H. Mexicanaf 3a,x's Cat. 

 4- a. testiidinalis f Id. 



Numerous specimens, Tres Marias, 



