NO. 1237. SYNOPSIS OF THE LVGINACEA—DALL. 801 



The West American species are as follows: 



CODAKIA COLPOICA Dall, 1901. 



Gulf of California. 



This is Lucina thjerlna Carpenter, but not of Linnaeus; L. ptinctata 

 of various authors, but not of Linnteus. The true tigerlna Linna'us 

 (Z. exmperata Reeve) is Indo-Pacific, and so is L. punctata. Both of 

 them have a sculpture very distinct from that of the Gulf species, and 

 both have erroneously been reported from Panama, and the latter 

 from the Galapagos by Wiuuner. 



CODAKIA (JAGONIA) MEXICANA Dall, 1901. 



Gulf of California to Panama and Guacomayo. 



This species is much like 61 orhicitlata Montagu, but has a quite 

 different lunule. It is the L\icma pecthuita Carpenter, 1857, but not 

 of Gmelin, 1792, or C. B. Adams, 1817; L. Jrhula Reeve, ex parte 

 (fig-. 33 only), 1850; L. hella Carpenter, 1S61, not of Conrad, 1837. 



CODAKIA (JAGONIA) GALAPAGANA Dall, 1901. 



Galapagos Islands, Chatham, Hood, and Indefatigable. 



This form is easily distinguished from O. ■mexlcana^ which has entire 

 ribs, by its coarser, somewhat annulatcd, and distally fasciculated 

 radial ribs. It does not appear to pass south of the Galapagos Islands. 



CODAKIA (JAGONIA) CHIQUITA Dall, 1901. 



Oft' Lower California at station 2830, dredged by tlie U. S. Fish 

 Commission in Q^ fathoms, sand. 



This is perhaps the smallest species of Jayonta in west American 

 waters; with line concentric and sparse obscure radial sculpture, and 

 suborbicular outline. 



Note. — A Lucina dlstlmjuejida is enumerated l)y Fischei" from 

 Panama,^ but without any author's name, and I am unable to discover 

 any desci'iption or other reference to it in the literature which would 

 enable me to determine wdiat shell was intended. It is true, Fischer 

 refers to it as the Pacific analogue of L. tiger In a Linnanis, l»ut as 

 both tigerlna and jyunctata have been reported from Panama, it is 

 possible that there are more than one species of large Codakla native 

 to that locality; and the one referred to by Fischer may prove, if 

 identified, distinct from the Gulf species which I have named C. 

 col'polca. 



Genus LUCINA (Bruguiere) Lamarck. 



This is Lucina Bruguiere, 1797 (not 1792, as often stated), in part; 

 Lucina Lamarck, 1799; Anodontia Link, 1807; and Lorlpes of many 



1 Manuel, p. 160, 1881. 



Proc. N. M. vol. xxiii — —51 



