765 



et distante lamellosa; lamellis erectis, tenuibus, latis, in latere 

 postico angulum rectum formantibus ; lunula, elongata, angusta, 

 irregulariter circumdata; valvis intus violaceis, in medio iiavo- 

 rubescentibus, marginibus in medio subcrenulatis ; sinu pallii tri- 

 gono, profundo, apice acuto." 



Whitish-brown on the outside, rich brownish-red inside, radi- 

 ately costated, with distant, concentric, erect laminae, which are 

 angularly produced at the posterior angle of the shell. 



Mazatlan. 



7. Venerupis insignis (pi. clxiv. f. 5, 6), Desliayes, Pro. 

 Zool. Soc. 1853. 



V. testa irregulari, crassa, turnida, radiatim striata, concentrice 

 irregulariter subfoliata, intus rubro-violacea, ad marginem nigres- 

 cente, extus versus marginem aurantia violascente; margine in- 

 terno la?vi. 



A finely coloured irregular shell, which it is just possible may 

 be a local variety of V. crenata, with the fringes undeveloped. 

 New Zealand, H, Evans, R.N. Cuming's collection. 



8. Venerupis mitis (pi. clxv. f. 22), Desliayes, Pro. Zool. 

 Soc. 1853 (ined.). 



V. testa oblongu subquadrata, pallida, postice angulata, leviter 

 radiatim striata ; concentrice laminis paululum elevatis cincta ; 

 margine intiis lsevi. 



Small, oblong-squarish, with regular slightly-raised concentric 

 laminae and fine radiating strise. 



9. Venerupis derelicta (pi. clxiv. f. 16), Desliayes, Pro. 

 Zool. Soc. 1853 (ined). 



V. elongata, pallida, radiatim striata, concentrice laminis crenu- 

 latis postice productioribus cincta; latere postico lato, oblique 

 subquadrato ; latere antico subproducto angustato ; margine ven- 

 trali contracto. 



The elongate Modiola-\ike form may possibly be accidental, anu 

 in all other respects this species is like V. Irus. 

 It is from the Philippines. Cuming. 



10. Venerupis oblonga (pi. clxv. f. 21), Soiverby, Pro. Zool. 

 Soc. 1834, p. 46. An Venerirupis subdecussata, Desk. ? 



V. " testa elongo-elliptica, pallescente ; radiatim costellata ; linea 

 dorsali postica rectiuscula ; lamellis concentricis pluribus ; postice 

 lajvigatis." 



