362 M. O. A. L. MORCh's REVIEW OF THE VERMETIDJE. [NoV. 12, 



24. Vermetus (Aletes) centiquadrus, Val. 



T. lateraliter affixa, spiraliter torta; anfr.primi sat angusti, arifr. 

 uUimus ampliatus, marginibus iitrinque compressis, inde npertura 

 utrinque auriculatim ejfusa ; color pallide rufescens, fasciis an- 

 gustis obscuris, interstitia lirarum impresso-punctatu. 

 Vermetus centiquadrus, Val. Voy. Venus, pi. 11. f. 1, 1 a, 1 a bis. 

 Vermetus effusus, Val. pp. , ; Chenu, 111. pi. 5. f. 4 (the 



same specimen !). 



Aletes centiquadrus, Val. Carp. Cat. p. 301. no. 352. 

 Vermetus {Aletes) centiquadrus, Morch, Mai. Blatter, 1860, no. 70. 

 Hab. Puntarenas {Oersted). 



The first whorls are of a dark-brown colour, and strongly sculp- 

 tured with longitudinal lirse and transverse rugae exceedingly like 

 V. contortus, Carp., which I suppose to be only a form of this shell, 

 judging from analogy with V. conicus, Dillwyn. The columella 

 shows one exceedingly feeble median lira, scarcely to be seen except 

 in a very favourable light, and two very conspicuous lateral lirse 

 which seem to answer to the laminae in V. macropihragma, but they 

 must perhaps be more properly regarded as the margins of a thin 

 layer covering all the interior of the whorls, except the larger 

 medial part of the columella, which shows a slight difference in 

 colour. 



Animal violaceum, capite obscure antice rotundato, tentaculis bre- 

 viusculis roseis ; dorso convexo, utrinque acute carinato, a meso- 

 podio canali profunda lato separato ; propodium planum, folia- 

 ceum,parvum; tentacula pedalia remota (contract a^breviuscida, 

 curvata, latere interna prof unde longitudinaliter fsso, mammilla 

 intermedia parva perforata ; mesopodium minutum, cordiforme, 

 bipartitum; pallium simplex, acutum, linea coccinea marginatum. 

 The colour is deepest on the back, and more feebly bluish towards 

 the margins of the foot. 



Var. a. maxima. 



Vermetus panamensis, Rousseau, Chenu, 111. pi. 5. f. 1, I a, 1 6 ; 

 Adams, Panama Shells, p. 216. no. 324 ; Menke, Zeitschrif . f. Mai. 

 18.^)0, p. 165. no. 13 ; Adams, Gen. p. 358. 



Hab. Panama {Adams) ; Mazatlan {Melchers). 



This seems only to differ from the preceding in its smooth surface 

 and deep transverse furrows. In ]Mr. Cuming's collection is a specimen 

 labelled "Philippines," which I cannot distinguish from the fig. 1 b 

 of Chenu. The V. angulatus, Rousseau, Chenu, 111. pi. 5. f. 2 (copied 

 Chenu, Manuel, p. 320. f. 2300), is possibly a white variety of this 

 form. In Dr. Chenu's plates are two marked "pi. 5," which I sup- 

 pose have given rise to the observations of Carpenter (Cat. p. 306), 

 who very likely has not seen the plate with the name V. panamensis 

 as rightly quoted by Menke and C. B. Adams. 



Var. /3. Puncfis impressis destituta. 



Vemetus peronii, Val. Voy. Venus, pi. 11. f. 2 (on Strombus 

 galea 1) . 



Aletes centiquadrus, Val. Carp. Cat. p. 302. 



