18 HALIOTIS. 



Species. 



1. GiGANTEA, f. 44, 45, 50, Chemnitz. — Testa magna 

 ovata convexa oblique undulatim rugata, spiraliter liris 

 subdistantibus subplanatis interstitiis planatis sculpta ; area 

 marginali lata, corrugata, nonnunquam costa tuberculata 

 magna divisa ; disco externo rubescenti, vel obscure fusco ; 

 foramiuibus magnis, erectis, tubulosis ; labio interno con- 

 cave arcuato, medio expanso. — -The very large tubes surround- 

 ing the holes is the chief characteristic in this large Japanese 

 species. There are three varieties as shewn in our figures. 

 At first these appeared sufficiently marked to require specific 

 distinction, but on examining a number of large specimens 

 in the British Museum and Taylorian collections, I found 

 the characters on which I should have relied to be inter- 

 changeable. Fig. 45 is from a small specimen. 



2. ECiiiNATA, f. 124, Sowerby. — Testa parva ovata de- 

 pressa fusca, concentrice rugata, liris validis spiralibus super 

 rugas squamoso-spinosas sculpta, area marginali costis tribus 

 spiniferis lirata et rugata ; spira prominula, acuminata, 

 tuberculis foraminiferis tubiformibus extantibus. — Small, 

 oval, depressed, dark brown, concentrically wrinkled, sculp- 

 tured with strong spiral ridges forming squamose spines on 

 the wrinkles, marginal area with three rows of spines. Quite 

 possibly the unworn young state of H. gigantea, but whether 

 as a state or species, it is unique in Mr. Hanley's collection. 



3. SiEBOLDii, f. 72, Reeve. — Testa concava, obliqua, rubra, 

 antice attenuata spiraliter planato-lirata ; spira terminali ; 

 labio interno obliquo, area marginali angusta. — I am strongly 

 inclined to believe this one-sided shell to be an abortion of 

 H. gigantea. 



4. EUFESCENS, f. 35, Swalnson. — Testa magna, crassa, 

 ovata, spiraliter rugose costata, oblique tuberculis crassis 

 magnis undata, rubra ; intus vivide purpureo viridique irides- 

 centi ; medio laminis fuscis ornata ; foraminibus magnis, 

 paucis tumidis.— A very thick, large, rugose shell ; the ir- 

 regular spiral ribs being crossed with large tumid, ol)lique 

 swellings. Mr. Hanley's magnificent specimen here figured 

 as reduced, is of a uniform coral red outside, while the 

 inside iridescence exhibits all the colours in great strength. 



