151 



Resembles P. compressa, but is more smooth and solid, and 

 the apex more nearly central. It may have derived its form 

 from being attached to some arched body. 



Patella cinnamomea. Testa parva, ovalis, convexa, tenuis, 

 cinnamomea, cum striis radiantibus, tenuibus, confertissimis, im- 

 bricato-asperis, apice acuto, antico, ad marginem valde decli- 

 nato ; aperturre margine anteriori excurvato, intus costa alba 

 marginali munito. Long, j, lat. f , alt. 5?^ poll. Hab. New South 

 Wales. 



Closely allied to P. Galathea, Lam. which, however, is snow- 

 white, more circular, the apex more central, and the striae much 

 coarser. 



Patella conica. Testa parva, conoidea, elevata, valde regu- 

 laris, inornata, vel lineolis obsoletis radiantibus et concentricis 

 striata ; colore luteo-cinereo : apertura rotundata, margine sim- 

 plici, limbo marginali planato. Long. j-|-, lat. ^, alt. f poll. 

 Hah. Puget Sound. 



Similar to P. scurra. Lesson, but is more elevated, less sym- 

 metrical, and more delicate in structure and markings, especially 

 in the radiating strisD. 



LoTTiA PiNTADiNA. Tcsta divcrsissime figurata et picta, tenuis, 

 ovato-rotundata, radiatim et confertim striata, smaragdina, inter- 

 dum fuscescens vel cinerascens, maculis crebris albidis tessellata 

 aut radiata ; apice plerumque sub-centrali, plus minusve elevata : 

 facies interna coeruleo-albida, nitens ; fundo piceo ; limbo lato, 

 piceo et albido tessellato. Long. 2, lat. If, alt. | poll. Hah. 

 Straits of De Fuca, Puget Sound, and Mouth of Columbia River. 



This very variable species is the analogue of L. testudinalis of 

 the North Atlantic waters, though larger. Two well-marked 

 varieties may be noted. One tessellated with about equal pro- 

 portions of green and whitish, the interior marginal limb broad 

 and tessellated, the dark color predominating. In the other the 

 colors are arranged rather in stripes, the internal limb is nar- 

 rower, and the light color predominates. Very probably L. scu- 

 tum., Esch. is only another variety. 



LoTTiA CYMBioLA. Testa solida, depresso-conica, arcuata 

 (apice eccentrica) glauco et fusco-olivaceo radiata, radiatim cre- 

 berrime puncto-striata : apertura elliptica, margine minutissime 



