Mollusca in the Collection of the Zoological Society/, 377 

 liatOy superne canaliculato ; columelld crenulatd ; long, l-j^, lat. 



H> poll 

 Hab, 



In this species, besides the murications, there are on each whorl two 

 rows of granulations near the suture. 



MUREX DUCALIS. 



M, testd ventricosd, tuberculato-muricatd, spird brevi ; anfractu ulti- 

 mo admodum ventricoso, varicibus 6-7, elevatis, 'dentatis et juxta 

 basin fornicato-muricatis, infra rubris ; umbilico mediocri ; aper- 

 turd et labia dentate rubris ; long. 6, lat. 4, poll. 

 Hab. in Oceano Pacifico. 



This fine shell was dredged up by Lieut. Belcher, near Mazatlan. The 

 ground colour of the old shell is fawn, banded closely and unequally 

 with obscure chesnut. In the young shell the ground colour is lighter, 

 the bands are broader, more distant and darker, and the muricated tu- 

 bercles are sharper, while the umbilicus is scarcely apparent, and the 

 aperture, excepting its rosy margin, is white. 



Pyrula patula. 



p. testd pyriformi, ventricosd, spird brevissimd, anfractibus superioribus 

 tuberculato-muricatis, ultimo superne angulato ; aperturd magnd, pa- 

 tuld, labia superne angulato, spiram versus in sinum profunde exca- 

 vato; columelld arcuatd, ad basin fiexuosd; labia calumellari tenui; 

 epidermide crassd, striatd. 



Hab. ad littora Oceani Pacifici. 



This fine shell was first noticed in the Tankerville Catalogue, with 

 doubts whether it might not be a species distinct from P. Melongena. 

 Specimens of all ages, in the finest condition, brought from Mazatlan by 

 Lieut. Belcher, have, in our opinion, dispelled these doubts. The very short 

 but muricated spire with the high angle of the body whorl — the angular 

 upper lip terminating, near the spire in a deep and rounded sinus — ^the 

 arched columella,sinuous towards the base — the thin and curtailed columellar 

 lip — the wide reddish-yellow aperture bordered round the exterior lip with 

 black, and the absence of the deep and wide canal at the sutures, are 



