SOWERBY : NEW SPECIES OF SHELLS. 215 



rotundatus ; columella brevis, baud plicata ; apertura ovato-acuta ; 

 peristoma simplex, vix rellexum, margiuibus callo junctis, columellaii 

 dilatato, crasso, rellexo, perforationem fere occultante. Long. 25, 

 diam. 15 mm. 



Hab. — N.E. Madagascar. 



Type in tbe collection of Mr. S. I. Da Costa. 



An interesting sbell, making tbe tbird species of tbe genus, or sub- 

 genus, LeucotcBnius,^ of wbicb B. Favanni, Lamk., is tbe type, and 

 B. crassilabris, Gray, tbe only otber representative. All tbrce inbabit 

 tbe Island of Madagascar. Tbe new species is mucb smaller tban 

 eitber of tbe otbers. In form it more nearly resembles B. Favanni, 

 but bas a more acutely conical spire. Tbe colouring consists of ligbt 

 brown streaks. Tbe body-wborl of B. crassilabris is more oblong in 

 form. 



4. CoNus CoxiANus, n.sp. PL XIII. Fig. 7. 



Testa turbinata, crassa, postice angulata, antice attenuata, lirata, 

 undique subtilissime undulatim striata, fulvo-fusco, nigro-fusco et 

 castaneo tincta et strigata, fasciis angustis interruptis, maculis parvis 

 albidis diversiformibus et sub-trigonis sparsim ornata ; spira abbreviato- 

 conica ; anfractus leviter concavi, angulati, baud striati, strigis fuscis 

 curvatis ornati ; apertura angusta, intus purpureo-fusco tincta ; 

 columella breviter contorta. Long. 39, diam. 21 mm. 



Hab. — Bay of Zeyla, Somaliland. 



In form this sbell comes between C. coffea and C. splendidulus, but 

 in its style of colouration it does not resemble eitber. Upon close 

 examination tbere are to be seen bere and tbere, and especially in a 

 sub-central zone, reticulated markings resembling tbose prevalent in 

 tbe " Cylinder'^'' group (C textile, etc.). 



Tbe only specimen I bave at present seen bas been lent me for 

 description by Capt. P, Z. Cox, after wbom I bave pleasure in 

 naming tbe species. 



5. CoNUs ELEGANS, n.sp. PL XIII. Pig. 8. 



Testa elongata, attenuata, albida, maculis parvis numerosis pallide 

 luteo-fuscis sub-quadratis picta, antice producta, spiraliter sulcata, 

 sulcis puncturatis, postice laevigata, obtuse angulata, ad angulum 

 carinata ; spira elata, acuta ; anfractus 8, planato-declives, angulati, 

 spiraliter striati, primi 4-5 tuberculis minutis coronati ; apertura 

 angusta; columella rectiuscula. Long. 32, diam. 10 mm. 



Hab. — Persian Gulf. 



A sbell of graceful form and delicate colouring, allied to C. 

 aculeiformis, Reeve, and C. insctdptiis, Kiener. Tbe anterior balf is 

 grooved, tbe rest of tbe body-wborl being smootb. Tbe colouration 

 consists of numerous small squarisb spots of ligbt yellowisb brown. 

 Tbe spire is elevated, witb tbe upper wborls coronated. 



6. PisANiA Bednalli, n.sp. PL XIII. Pig. 6. 



^ PfeifFer ^ives Buliminus ornatus, Dufo, as a third species of Leucotmnius, but 

 this is evideutly a Pachnodus, and seems from the description to be identical with 

 Pfeiffer's li. pulverulentus from the Seychelle Islands. 



VOL. I. — MARCH, 18J5. 16 



