1894. PBOCEKDINGS OF THE NATIONAL MUSEUM. 201 



Tres Marias; La Paz, Forrer. Not unconiiiion elsewhere in and 

 arouud tlie Gulf. 



[This is the Glyphis densiclathrata of Califoriiiau couchologists, but 

 not of Reeve; G. saturnalis of Pilsbry (Nautilus, v., p. 105), not of Car- 

 penter, and G. (lensirhithmta var. muHna of Carpenter. — W. H. D.]* 



FISSURIDP:A IN^.QUALI.S, Sow("i])y. 



= Glyphis ina'fjualis, Sowerby. 

 Frequent. 



Tres Marias (Maria Madre), numerous, Fisher (No, 4S191, U. S. N, M.); 

 La Paz, Fisher, and Forrer. 



FISSUKIDEA IN^QUALIS. 

 Var. =PICA. Sowerby. 



One example. Tres Marias (No. 48100, T^. S, N. M.). 



FI.SSITRIDP^A ALTA, C. B. Adams. 



=Glyphi8 alia, C. B. Adams. 



Five specimens. Tres Marias (No. 48195, TT. S. N. M.) ; also Panama, 

 Bridges (No. 48194, U. S. N. M.). 



Siaperfainily EOFLt^lCOPTIORA.. 



Family Isohnochitonid je. 



ISCHNOCHITON CLATHKATIIS, Reeve. 

 ^Lepidoplenrus pectinulatus, ("ARPKNTEii, Mss. ;inil of authors. 



Numerous examples. 



Assuucion Island (No. 58852, U. S. N. M.); Todos Santos Bay, Hemp- 

 hill (No. 58779, U. S. N. M.) ; Lower California (Nos. 58805, 125590, U. S. 

 N. M). Besides the above the collection has been enriched by a fine 

 series of this si)ecies from Mr. Hemphill, who collected them along the 

 ocean shore of the peninsula. 



ISCHNOCHITON MACANDREI, Carpenter. 



=C. muscarius, Reeve, fide Carpenter. 

 One specimen, imi)erfect. 



Mazatlan (No. 58879, U. S. N. M.). The foregoing was determined by 

 Carpenter; it is quite rare in collections. 



ISCHNOCHITON (STENORADSIA) ACRIOR, C a r p e ii t e r . 



Six examples. 



San Juanico (No. 58710, U. S. N. M.), also same place (No. 58750, U. S. 



* Dall iu Proc. U. S. Nat. Museum, Vol. xiv, p. 197-198. 



