180 EEY. E. T. Lowe's list or shells 



tion for a western aspect, being found in Britain cliiefly on the 

 west or soutli-west coasts. 



65. Scalana erenata, Desh. in Lam. ed. 2. ix. 76 ; Turbo cre- 

 natm, Linu.Syst.ed.l2. 1238 ; Chemn.xi.l56, t.l95A.f 1880, 1881. 



66. Melanopsis cariosa (L.). 



M. testa ovata v. ovato-oblonga subturrita ssepe longitudinaliter costata et 

 1-2-seriatiTn nodulosa, costis nodulisque ssepe obsoletis evanidis, oliva- 

 cea V. castanea nigricans ; spira breviuscula apice acuto ssepe eroso-trun- 

 cato decoUata ; anfr. planatis subconfluentibus, ultimo supra medium 

 cingulatim constricto-impresso v. subcanaliculato, sutm-a simplicissima 

 planata exoleta ; anfr. ultimo testse integrse (nee decollatse) dimidium 

 sequante v. superante ; apertura sursum angustissime producta arete 

 contracta acuminata. 



a. torulosa ; plus minus longitudinaliter costata, costis infra suturam ob- 

 solete noduliferis, nodulis 1- v. 2-seriatis. 



M. cariosa, Desh. in Lam. ed. 2. viii. 494; Rossm. Ic. ix. x. 42. " M. 

 costellata, Fe'r." (Desh.). 



1. Subvar. minor; testa parvula crassiuscula nigricante obsolete 14-16- 

 costulata apice plerumque eroso-decollata. 



Long. 4-6 V. 8 lin., apert. 3-4 ^ ; lat. 2-3^. 



Murex cariosus, Linn. ! Syst. ed. 12. 1220; Hanley! Couch. Linn. 298. 

 t. ii. f. 6 (sutura nimis impressa). Melanopsis cariosa, Rossm. ix. x. 

 42. t. 50. f. 680 (spira carioso-decoUata) et xiv. 33. t. 68. f. 846 (spira 

 completa)=M. sevillensis, Gratel. in Graells, Catal. p. 17. 



Swarming in the spring at the Emperor's Garden up the river 

 near Mogador, crawling on the sandy mud at the bottom, and 

 chistering on sticks and stones in the water. Animal black. 

 Sliell dark olive-brown or black, with chalky-white eroded patches, 

 and the apex almost always much eroded and abruptly truncate, 

 leaving only about three volutions, which are somewhat faintly 

 ribbed longitudinally, the ribs always more or less irregular, and 

 often evanescent on the last volution, the shell blending gradually 

 into /3 1 in this respect, as with regard to size it passes into /3 2. 

 Sometimes the ribs form one or two indistinct rows of faint no- 

 dules, one above, the other below the single infra-sutural depressed 

 belt. Suture always flattened, plain, and indistinct or simple. 



2. Subvar. major ; testa majore tenuiore pallidiore saepius turrita, spira 

 productiore acuta distinctius 12-20-costata. 



Long. 6-15 lin., apert. v. anfr. l""' 4-7^ v. 8 ; lat. 3-6. 



Var. major, Desh. I. c. ; Chemn. xi. 285. t. 210. ff. 2082, 2083, hue 



potius quara ad M. costatam (Oliv.) referendae. 

 «. Short ovate ; ribs strong, remote, regular, 12-15. 

 h. Turreted-elongate ; ribs more irregular and crowded, 16-20. 



