HARP A. 9t 



A. LiENARDi, Beriiavdi. PI. 39, figs. 55, 56. 



Light yellow to deep orange, basal groove white ; columella, 

 callus and interior white. Length, l'25-2 inches. 



Pernaiubuco, Brazil. 



Proportionally much wider, with shorter spire than A. (jlabrata, 

 yet I suspect that it is a mere variety of that species. 



A. BALTEATA, Swainson. PI. 39, fig. 51. 



Yellowish white to orange-yellow, whorls angularly belted 



around the upper part, basal groove broad, whitish. 



Length, 1-5-2 inches. 



Ceylon. 



The localit3^ appears to be luidoubted, and all the specimens 



I have seen are alike, yet it seems to be abnormal in its posterior 



angulation, and to resemble otherwise a stunted A. glabrata. 



Subfafnily HARPINJE. 



Genus HARPA, Lam. 



The animals of Harpa have a very large foot, with the front 

 crescent-shaped, and divided by deep lateral fissures from the 

 posterior part. ITnable to withdraw completely within their 

 shell, they are said, when irritated, to have the power of spon- 

 taneously detaching a portion of this foot. They are variegated 

 with beautiful colors, and crawl with vivacity. Tropical, inhabit- 

 ing Mauritius, Philippines, Ceylon, Polynesia, West Coast of 

 America, but unknown on th6 tropical Atlantic coasts of 

 America. 



There are a few fossil species. Eocene, . 



Harpa has been monographed by Reeve, Kiener, Sowerl)y and 

 recently by Dr. Aug. Sutor. The latter enumerates sixteen 

 species, which I have reduced to nine. Like Strombus, Harpa 

 appears to be a completed genus, no new forms rewarding the 

 industry of modern investigators and exploi*ers. 



H. COSTATA, Linn, PI. 40, fig. 58. 



Shell with thirty or more close-set ribs, pointed at the top ; 

 white, zoned with ttesh-color or light chestnut; apex rose-tinted ; 

 interior of aperture yellowish, middle and upper part of inner 

 lip stained with brown. Length, 2'5-3'5 inches. 



Mauritius. 

 13 



