1-1 . reticulata and Cypraa histiio distinct. 



confined t<> the tropical regions of the Pacific Ocean. Great num'' 

 her.- of them are brought from ihe Polynesian Islands, by Ameri- 

 can whaling vessels. Martyn's specimens were from the Friendly 

 Islands. 



' -i ri: : \ BISTRIO. Mcusclicn. PL XVI. Pijr. 2. 

 C. testd "vat.i, ad extremitates suhattenuata, super cenvexav 

 interdum turgida, Castanet, ocellis albidis rotundatis aut polygo- 

 nis; macula oigr&juxta spiram: Iinea dorsali recta, propriore la- 

 terem sinistrum; lateribus albido-fulvis, nigro sparsim maeulatis; 

 basi subconvexa, albido-fulva aut violascente; rima subrecta, den-- 

 tihus caataneis, extus non productis. 



- v \onomy.» 



I.istcr, 1688. Hist. Conch., t. 659i f. 3, a. 

 Kuorr, 17G6. Vergnugen, 2. t. 16, f. 1. 

 Cypraa hittrio. Meuscben, 17-7. Museum Geveisiannm, p. -104. 

 C.orlequina. Chemnitz, 1788. Conch. Cab. 10. p. 110, tab. 145, f. 



1346, 1347. 

 ( '. hittrio, pars. Gmelin, 1789. 13th ca of Syst< ma Nature, p. 3403. 



hittrio. lira I M^thodique, pi. 351, f. 1, a. b, 



I I'llujn, 1817. DeeoripUve C te, Vol. I., p. 439, 



l 

 ' hittrio. Lai '.-..' \ maux sans Vertebras, Vol. VII, p. 379> 



('. arabica, nt. hiti Gray, 1824. Monog. in Zoological Jour • 



ual, \ oL I . p. 77. 

 arabica, \ ar. do. Jo. do. 



Veil. }.. p. 7 7. 

 (' hittrio. Quoy \ Gaimard, 1833. Voyage de I'Astnlabe, t.3, p. 

 30, pL 17, f. 10, 11, with animal. 

 C. arabica, w. Kiener, 1843. [conograpbie des Coquillea Vivantcs, 

 G( mi- Cj i.Tiia, |i. 10G, pi. 17, f. 2. 



• The i I oni, Rumphius, Pi 1 1 % • r. and Wood, are bo ambiguous, thai 



1 bi ■ best i" "mil all i. to them. The figure in the Voyage of 



Astrolabe, I also quote with some doubt, since il represents the shall nearly 

 li> the folds "i the mantle. The small portion of the hack <>f the shell 

 which is visible, in rmi sufficient to enable on to refer it with certainty to the 

 /nth. n. in thii connection, I am bappj to acknowledge mj obligations to Da 

 Jaw C.J •: I-' s, for the means which his <\iins,\'' mndiologirul lihran !. 



• f the (■ynonoiny gixni in rhi- j >.i j>«r. 



