ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 533 
Column. 
116. Chiton Stelleri, n. s.,= C. amiculatus, Sby., Rve., non Pallas. 
117. Chiton Pallasii, n. s. 
117. Chiton Brandtii, n. s. 
118. Chiton Mertensii, n. 8. [ Ischnechiton]. 
118. Chiton Eschscholtzit, n. s. 
119. Chiton Wosnessenskit, n.s. [A typical Mopala: mantle indented behind. ] 
120. Leg Merchii, n.s. [= Ch. lignosus, Gld., July 1846:= Mopalia Montereyen- 
sis, Cpr. ]. 
120. Chiton hvidus, n. s. 
121. Chiton scrobiculatus, n. s., California. 
121. Chiton Sittchensis, n. 3. 
Noy. 1847 (read April 28): vol. vi. No. 20 (total number 140). 
317. Patella (? Acmea) ancyloides,n.3s. [Probably a delicately grown young patina : 
the diagnosis, however, suits ¢evtilis. Name afterwards altered to per- 
sonoides, to distinguish from Propilidium ancyloide, Fbs.] 
318, Patella (?Acmea) eruginosa, n. 8. [Probably =teztilis, Gld., 1846; but the 
figure is more like seabra, Nutt. | 
318. Patella (? Aemea) pileolus, n. 8. [Probably the young of A. pelta; but assigned 
in Mus. Cum. to a very different shell, =_A. rosacea, Cpr. | 
318. Patella (?Acmea) Asmi,n.s. [A specimen of A. pelta, in Dr. Cooper’s col- 
lection, began life as A. Asma. | 
319. Patella (? Acmea) ceca; genuina, vertice erecto, Atlantic. 
319. Patella (? Acme@a) ceca, var. concentrica; vertice subinflexo; with crowded 
lamellze of growth. 
1849; read Oct. 6, 1848: vol. vii. No. 160. “ Vorlaufige Anzeige einiger neuer 
Konchylien aus den Geschlechtern: Zrtorina, &e., 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 tenebrosa). 
3. Litorina subtenebrosa. [Probably an extreme var. of L. Sitchana.] 
4, Tritoniwm (Fusus) antiquum, Lu., var. Behringiana. 
243 5. Tritonium (Fusus) Behringit. 
6. Tritonium (Fusus) Baerit. 
7. Tritonium ‘Beas Sitchense [probably = Chr. dirus, Rve., var. ; but stated 
to be “e livido viridescente; columella seepius umbilicata” ]. 
8. Tritonium (Fusus) luridum [= Vitularia aspera, Baird, smooth form]. 
244 9. Tritonium (Buccinum) simplex. 
244 10. Tritoniwm (Buccinum) Ochotense. 
245 11. Tritoniwm (Buccinum) undatum, Linn., var. Schantarica. 
245 12. Tritoniwn acc oordes. 
245 13. Bullia seis the genus Volutharpa of pect. 
246 15. Natica herculea, North California [= LZ. Lewis, Gld., July 1847]. 
246 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. Aemea seutum, 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 Eschrichtit. |=Bittium filosum, Gld., May 1849. There 
being no month-date to Midd.’s species, the excellent name of Gid., 
which may also be of Phil. 1848, should be retained. ] 
216. Trochus ater and meestus [are well-marked South American species. 
Probably the shells intended are Chlorostoma funebrale, A. Ad., 
and its congeners. | 
216. Trochus euryomphalus | =Phorcus pulligo, Mart., teste Dohrn]. 
216. Trochus modestus, Md. | =filosus, Wd.,= Calliostoma costatum, Martyn]. 
216. Trochus (Turbo) Fokkesi [is from the peninsula of Lower Cal. ]. 
216. Natica flava, Gld. [is entirely different from any of the synonyms 
under it,” teste Gld. ]. 
