198 AMERICAN JOUKNAf. 



SYNONYMY OF PATELLA EXARATA, RVE 



BY THE LATE W. HARPER PEASE. 



In this Journal, Part 3, 1870-71, a paper is published from 

 W. H. Dall, "On the Limpets," 



He remarks that lie has made a carefnl examination of the 

 species detailed, and proceeds to give his views as to the classi- 

 fication of the group. 



The following is his synonymy of the above species, with his 

 remarks. 



Helcioniscus exaratus, Nutt. 



Patella exarata, Nutt. Jay's Cat. p. 38. Rve. (Jon. Icon. pi. 



19, fig. 47, a, b, 1854. 

 Patella Sandwichensis, Pse., P. Z. S., 1860, p. 537. 

 Patella undato lirata, Pse., [Ubi ?] MSS. label, Cab. S. I. 



" The so-called species of Mr. Pease are not even distinguish- 

 able varieties, and have no characters by which they can be dif- 

 ferentiated from the typical exarata. The description of the 

 first is in English, without a figure. I have not been able to 

 find a description of the second." (Dall.) 



Had Mr. Dall examined and eaten as many of the animals of 

 the above species as I hive during the past twenty years, he 

 would have been convinced from the taste, as well as sight, that 

 they arc distinct. 



I decline the honor of being the author of "P. undato-lirata" 

 In answer to "Ubi," I refer him to " Con. Iconica," a work he 

 appears to be acquainted with. Whatever errors may exist in 

 the Smithsonian Collection, a species so distinct and common as 

 the above should be known to and be recognized by any person 

 who has studied the Patellidce. 



Mr. Dall has also overlooked the variety of "P. exarata,' 1 fig- 

 ured on PI. 24, of the above work. 



