

Section Aequipeoten Fisoher. 



PEOTEII (AEQUIPIGTE:") IlLyiQU/J.! S Sowerl3j^ vcr. AjUJI:?I0TU3 n. var. 



Peoten Inaequalis juppy, 18C6, Quart, Jour. Geol. 3oc. london, 

 vol- 2S, p. ?94, pi. 18, fi<-. G {non ^ov/eroy, I'^oO). 

 Peoten inaeqixalis Guppy, 1874, Geol, Mag., decacle 2, vol. 1, p. 



44-5 (check list), e:: 't arte , non Sowerljy, 1850. 

 Pecten ( Aeguipe oten ) iaa. ecm.alis .i^all, 1898, 'i]rans. ./agner Pree 

 Inst, Sci., Philadelphia, vol. 5, pt . 4, p. 714, (ex 

 parte, non Sov/erhj', 1850). 



Description ,- "^hell of me'i ^ , the, height and width 



almost erm.al, suhequilateral, with the posterior side raore produced; 



right valve deoiderily inflated, left vplve moderately or slight- 

 ly inflate", compressed toward th^ ':rsl nB,r~in; dorsal margins 

 straight or slightly conerv?, •^'■-e -^^sterior raarrin long-^r ^-^^' --i+^h 

 a steeper slope than the anterior, the two margin " ' . rging at an 

 angle of 90°; exterior surface of right valve sculptured with seven- 

 teen or eighteen high, hroad, more or less polished radial ribs, 

 their tops slightly rounded and their flanlrs excavated; intervening 

 intercostal S"oaces narrower, deeply and squarely chpnnele''; in the 



interspaces fine, but distinct raised concentric liixes present. 



