ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 533 



Column. 



llti. CJiifon Steflcn'. n. 9.,= C. amiculatits, Sby., Rve., non Pallas. 



117. Chiton Pa/lnsii, n. 8. 



117. Chiton Brandtii, n. 8. 



118. Chiton Mert4ntii, n. s. [Igchnochitonl. 



118. Chiton Eschscholtzii, n. s. 



119. Chiton WosnessenskiifXi.a. [A typical J/bw/w : mantle indented beliind.] 

 ll'O. Chiton Merckii, n. s. \_=Ch. liynosas, Uld., July 18Mi: = JIopiilia Montcrci/en- 



sis, Cpr.]. 



120. Chiton tivulm, n. s. 



121. Chiton scrobictilntus, n. 8., California. 

 121. Chiton Sitchensis, n. s. 



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



317. Patella (?Acmfpa) ancyloides, n. a. [Probably a delicately gi'own ymm<^ patitin : 



the diagnosis, however, suits tt.vtifi.s. Name afterwards altered to jnr- 

 souoidfti, to distingnisli from Propilidiuin nnri/loide, ¥hs.\ 



318. Pati'lla (?Acmfpa) (enxjinosa, w.s. [ Probably =<fjr<j7j«, Gld., 1846; but the 



fifrure is more like scabra, Nutt.] 

 318. Patella (? AcmcBa) pileolus, n. a. [Probably the joim;? of A.pelta ; but assigned 

 in Mus. Cum. to a very ditierent shell, = .4. rosacea, Cpr.J 



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



lection, began life as A. Asmt.] 

 311). Patella {?Acma:a) caca; genuiua, vertice erecto, Atlantic. 



319. Patella (?Acm^a) ceeca, var. concentrica ; vertice subiuHexo ; with crowded 



lamellpe of growth. 

 1849 ; read Oct. U, 1848 : vol. vii. No. IGO. " Vorlaiifige Anzeige einiger neuei 

 Konchylien aus den Gescblechtem : Litoriu ', &c., von Dr. A. Th. v. MidJendortf." 

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



represent a large var. of L. litorea.l 

 242 2. Litorina Kurila (like tenehrom). 



24.i 3. Litorina subtenebrosa. [Probably an extreme var. of i. Sitchana.'\ 

 24^i 4. Tritonium { Vtisus) antiquum, Ln., var. Behringiana. 

 24^3 5. Tritonium (Fusus) Behringii. 

 24^3 6. Tritonium (Fusvs) Baerii. 

 244 7. Tritonium (Fusus) Sitchcnse [probably = CI%r. </tV«?, Rve., var. ; but stated 



to be " e livido viridesceute ; columella sa?piu8 umbilicata"J. 

 244 8. Tritonium (Fusus) luridum [= Vituhiria as^Kra, Baird, smooth form]. 

 244 9. Tritimium (Bucrinum) simplex. 



244 10. Tritonium (Burcinum) Ochotense. 



24.5 11. Tritonium (Buccinum) vmlutum, Linn., var. Schantarica. 



245 12. Tritonium (Buccinum) ooides. 



245 13. Bullia ampullacea [is the genus Volutharpa of Fi.«cher]. 



246 15. Natica hercuheu, N orth California [ = i. Leivisii, Gld., .luly 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. Aanaa 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]. 



216. Turritella Eschrichtii. [=J5//^«wm.;?/os?OH, Gld., May 1849. Thera 

 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 mcestus [are well-marked South American species. 

 Probably the shells intended are Chlorostoma funcbrah; A. Ad., 

 and its congeners.] 



216. Trochus eurgomphalus [ = Phorrtts pidligo, Mart., teste Dohml. 



216. Trochus modestus, Md. l=filosus,\\d., = Calliostoma costatum, Martyn"'. 



21(». Trochus ( Turbo ^ Fokkesii [is from the peninsula of Lower Cal.]. 



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

 under it," teste Old.]. 



19 



