TURBO. 225 



Basis complanata, tricostata, in regione umbilicali callo albido 

 bisulcato induta. Columella callosa, arcuata. Apertura 

 obliqua. Operculum ovale, intus planum, olivaceum, vire- 

 scens, apice marginali ; extus album, rugosum, valide tricos- 

 tatum, costis vix arcuatis, interstitiis profunde exeavatis. — A 

 fine species, often uncoated and polished for ornamental 

 purposes. — Hab. California. 



120. JAPONicus, pi. X. f. 125, DunJcer (Trochus), Abbild. 

 Conch, vol. i. pi. 5, f. 1. — Testa depresso-conica, imper- 

 forata, fulvo-spadicea ; anfractus circ. 8, declives, oblique 

 granoso-corrugati, et promiscue plica ti, ad marginem carina 

 late squamosa irregulariter plicata et lobata ornati. Basis 

 dense creno-lirata. Columella callosa, acuata. Apertura 

 obliqua. — A very remarkable species of the same type as 

 the preceding, but with a very expanded, irregularly-waved 

 marginal keel. — Hab. Japan. 



121. Tatloeianus, pi. xiii. f. 169, Smith, Vroc. Zool. Soc. 

 1880, pi. xlviii. f. 9. — Testa turbinato-conica, infra plana, 

 imperforata, purpureo -rosea, strigis obscurioribus perobliquis 

 indistincte notata, ad basin albida. Spira breviter conica, 

 marginibus rectiusculis. Anfractus circiter 8, declives, su- 

 perne levissime concavi, inferne convexiusculi, ad suturam 

 carina rugosa subsquamosa ornati, liris numerosis granulorum 

 subsequalium parvorum cincti. Anfr. ultimus infra medium 

 acute carinatus, supra carinam leviter excavatus, infra earn 

 planus. Basis albida, zona externa purpureo-rosea cincta, 

 seriebus concentricis granulorum ornata, in regione umbilicali 

 callo albo Isevi flavo-marginato induta. Columella albo-callosa, 

 arcuata. — Although following Mr. Smith, I have placed this 

 remarkable species provisionally under the section Pomaulax. 

 In the absence of the operculum it is impossible to say to 

 which section it properly belongs. It is very unlike the two 

 preceding species, and its closely granidated surface reminds 

 one of the Ziziphinus section of Trochus. — The locality is 

 unknown. Specimen unique in the British Museum, late of 

 the Taylor collection. 



Section 16. Uvanilla. 



122. OLivACEUS, pi. xii. f. 145, Wood (Trochus), Index 

 Test. Supp. pi. v. f. 7 — T. erythrophthalmus, Fhilippi. — 

 Testa turgido-conoidea, olivacea, ferrugineo-rufo tincta et 



