524 MAZATIAN TTNIYALVES 



Tablet 2501 contains a magnificent, uncleaned specimen, 

 with operculum. — 2502, an operculum differing from the rest 

 in having the inner edge more truncate, and the corrugations 

 irregular. It may be an abnormal form of this species, or 

 may belong to Ph. bicolor. 



669. Phyllonotits bicoloe, Val. 



Mures bicolor, Val. in Humb. Sf Bonpl. Rec. Ohs. p. 301. — 



Rue. Conch. Ic. pi. 11, f. 4i. — Kien. Icon. Conch, p. 67, no. 48, 



pi. 28, f. l.—Soio. Conch. III. no. 9l.—Mke. in Zeit.f. Mai. 



1850, p. 187, no. 70. 

 Mures erythrostomus, Swains. Zool HI. series ii. Tol. ii. pi. 73. — 



Desk, in Lam. An. s. Vert. vol. Ls. p. 610, no. 81. 

 Mures regius, Schub. ^ Wagn. in Chemn. Suppl. vol. sii. 



p. 133, pi. 230, f. 4066-7, (non Swaim.) 

 Var. = Mures hippocastanum Phil. Ic. pi. 1, f. 2, (teste Bve. 



non Linn.) 

 Vide Kust. Mart. pi. 5, f. 1, 2. 



Shell closely resembling M. imperialis. Swains. (Lam. An. s. 

 Vert. vol. is. p. 611, no. 82,) ; with 6 varices, each having a pos- 

 terior canal, an adjacent open spine, and about 8 others behind 

 the labrum, which is deeply denticulated. Between each 

 varis is a false varis with about 4 spiny tubercles. Surface 

 foliated behind the posterior canal. Outside covered with 

 extremely fine spiral stria;, decussated by equally fine lamina) 

 of growth which are undulated by the stria;. Labium expanded, 

 raised, and, with the moulh, pink. Siphonal canal greatly 

 bent, nearly covered, scarcely leaving an umbUicus. Long. 6 '8, 

 long. spir. 1*6, lat. 4*, div. 100". 

 iZ«5.— Gulf of California ; on mud banks at low water ; Lieut. 



Babb. — Acapulco, Humboldt ^ Bonpland. — Mazatlan ; very 

 rare ; L'pool Sf Havre Coll. 



Tablet 2503 contains one of the three sp. which alone were 

 found in the L'pool Col. Several specimens in the London 

 shops were probably from the Havre Col. 



670. PHTLLOXOirs EEGius, ^wains. 



Mures regius, Swains, in Bligh Cat. p. 16, no. 201, 806 (non 

 deser.)— iroort. Lid. Test. Suppl. pi. 5, f. 13.— Sow. Conch. 

 III. Cat. no. 8d.—Kien. Icon, Conch, p. 65, pi. 42, 43, f. 1.— 



