ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 533 



Column. 



116. Chiton StelJeri, n. s.,= C. ainlcidatus, Sby., E.ve., non Pallaa. 



117. Chiton Pallasii, n. s. 



117. Cliiton Brandt a, u. s. 



118. Chiton Mertcnaii, n. 3. \_Ischnochiton'\. 



118. Chiton EschschoUzii, n. s. 



119. Chiton Wosnessenskii, n. s. [A typical Mopalia : mantle indented behind.] 



120. Cliiton Merckii, n. s. [=C/i. liynotius, Gld., July 18J;G: = il/ciyj«/ia Montcreyen- 



sis, Cpr.]. 



120. Chiton lividus, n. s. 



121. Chiton scrohiculatus, n. s., California. 

 121. Chiton Sitchensis, n. s. 



Nov. 1847 (read April 28) : vol. vi. No. 20 (total number 140). 



317. Patella (?Acm(pa) ancyloides, n. s. [Probably a delicately grown young patina : 



the diagnosis, however, suits te.iiilis. Name afterwards altered to pcr- 

 sonoides, to distinguish fi-om PropilidiiDn ancyloide, Fbs.] 

 S18. Patella (?Ac77iaa) ceruyitwsa, n. s. [Probably =<ex^i(7i;s, Gld., 1846; but the 

 figure is more like scahra, Nutt.] 



318. Patella (? AcmcBa) inleolus, n. s. [Probably the young of A. pelta ; but assigned 



in Mus. Cum. to a very different shell, = ^. rosacea, Cpr.] 



318. Patella {?Acm(ea) Asnii, n. s. [A specimen of A. pelta, in Dr. Cooper's col- 



lection, began life as A. Asmi-I 



319. Patella (?Ac)7i<z:a) cceca ; genuina, vertice erecto, Atlantic. 



319. Patella (?Actn<sa) cceca, var. conceidrica j vertice subinHexo ; with crowded 



lamellse of growth. 



1849 ; read Oct. 6, 1848 : vol. vii. No. 160. " Vorljiufige Anzeige einiger neuer 



Konchylien aus den Geschlechtem : Litorina, &c., von Dr. A. Th. v. Middendorff." 



241no. 1. Litorina grandis. [The specimens in B. M. and Mus. Cum. appear to 



represent a large var. of L. litorea.'\ 

 242 2. Litorina Kurila (like tenehrosa). 



242 3. Litorina subtenebrosa. [Probably an extreme var. of L. Sitchana.'j 



243 4. Tritonium (Fiisus) antiquum, Lu., var. Behringiana. 

 243 5. Tritonium (Fusiis) Behringii. 



243 6. Tritonium. (Fusiis) Baerii. 



244 7. Tritonium {Fusus) Sitchense [probably = Clir. dina, Hxe., var. ; but stated 



to be " e livido viridescente ; columella sfepius umbilicata"]. 

 244 8. Tritonium (Fusus) luridum [ = Vitularia aspera, Baird, smooth form]. 

 244 9. Tritonium (Buccinum) simpler. 



244 10. Tritonium {Buccinum) Ochotense. 



245 11. Tritonium (Buccinmn) undatum, Linn., var. Schantarica. 

 245 12. Tritonium (Buccinum) ooides. 



245 13. Bullia ampullacea [is the genus Volutharpa of Fischer]. 



246 15. Natica herculcea, North California [ = Z. Lewisii, Gld., July 1847], 

 240 16. Margarita arctica, Leach, var. major. 



In the text of the 4to volumes, the following corrections are suggested, the 

 numbers referring to the page in the B. A. Report which contains the abstract. 



Report, 215. Acmcsa scutum, D'Orb. [is quite distinct from A. persona, Esch. The 

 latter, as figured by Midd., is a very young shell, not certainly be- 

 longing to the species]. 



210. Turriiella Eschrichtii. [=5j«mm.;^fos?«n, Gld., May 1849. There 

 being no month-date to Midd. 's species, the excellent name of Gld., 

 which may also be of Phil. 1848, should be retained.] 



216. Trochus ater and mccstus [are well-marked South American species. 

 Probably the shells intended are Cldorostoma funebrale, A. Ad., 

 and its congeners.] 



216. Trochus ewyomphalus [ = Phorcus pnlligo, Mart., teste Dohrn]. 



216. Trochus modestus, Md. [—/ilosus,'Wd.,= Calliostoma costatum, .Martyn]. 



216. Trochus (Tiirho) Fokkesii [is from the peninsula of Lower Cal.]. 



216. Natica flava, Gld. ["is entirely different from any of the synonyms 

 under it/' teste Gld.]. 



19 



