5C8 REPORT 18C3. 



39. Irochvs auripiymentum, Jonas. Panama. [Probably not from W. America.] 

 17. Phasianella pe'rforata, Phil. Mazatlaii, Panama+7%. compta, Old.* Rather 

 out of place f > has neither form nor texture of Phasianella. [The aberrant 

 form is due to the figured specimen being quite young; the adults in 

 Brit. Mus. Col. prove the texture, colouring, and operc. to be normal.] 

 Genus Simpulopsis. This group, intermediate between Vitrina and Succinea, ia 

 stated to be peculiar to Brazil and Mexico, where Vitrina is not known. 



In the Monograph of Terebratulidce, which is prepared with unusual care, 

 and the general introduction to which is well worth attentive perusal by all 

 students, occur the following species which bear upon the West Coast fauna 

 or synonymy : 



2. Terebratula (Waldheimia) dilatata, Lam., = 71 Gaudichaudi, Blainv. "Str. 

 Magellan," teste Gray, in Brit. Mus. Cat., without authority. [The E. E. 

 specimens varied considerably in outline ; and according to Darwin, and 

 what we know of the variations of fossil species, it is quite possible to 

 believe that this and the next species had a common origin. The great 

 development of this most interesting form, in the cold regions of South 

 America is extraordinary.] 



i 3. Terebratula ( Waldheimia) ytobosa (Val.), Lam., from type. = T. Calif ornica, 

 Koch. "California, Coquimbo. Californian form well known; small 

 specimen in Mus. Taylor, marked <de Coquimbo.'" [There appears no 

 authority for the general belief that this fine species is Californian. It was 

 taken in abundance by the naturalists of the U. S. E. E. at Orange Bay, 

 Magellan. The Californian shell, which is probably the original Cali- 

 fornica, Koch, (not of authors) is a distinct species/teste Eve. from Dr. 

 Cooper's specimens.] 



7. Terebratula (Terebratulina) radiata, Eve., Mus. Cum. ? Straits of Corea, 

 Belcher. [Very like the adult of T. caurina, Gld.] 



11. Terebratula uva, Brod. Bay of Tehuantepec, Guatemala; 10-12 fms. sandy 

 mud, on dead bivalve, Capt. Dare. Mus. Cum. and De Burgh. [The 

 analogue of T. vitrea, Med.] 



16. Terebratula (Terebratulina) Japonica, Shy., = T. angttsta, Ad. and Eve. Corea, 

 Japan. "Eepresents T. caput-serpentis, and probably the same." 



23. Terebratula physema, Val., MS. (unique), Coquimbo. Gaudichaud, 1833. 



May be a colossal, broadly inflated var. of c/lobosa. 



G. Orbicula Cumingii, Brod. [Besides information in Eep. pp. 183, 244, is given] 

 Is. Cana, Guatemala ; sometimes 6-18 fms., Cumin f/. 0. sir it/at a, Brod , 

 is a less-worn state of this species. [The type-specimens of l)iscina stri- 

 gata in Brit. Mus., on Pecten ventricosus, appear very distinct, and are 

 unusually shelly for the genus.] 



excluding Ziziphinus (= Calliostoma), Mr. Reeve " contrives to place " in Trochns animals 

 shown bv the opercula to belong to different subfamilies, as though we knew no more titan 

 in Lamarck's days ; his motley group containing Imperator ( = Stella, H. and A. Ad.)-f- 

 Lithopoma -f- Guildfordia-}- Chrysostoma -f- Bolma -f- Modelia -\- Polydonta -\- Tectus-\- 

 Pomaulax-\-A.stralium-^-Pachypo'ma-\- Uvanilla. Also in a family the genera and species 

 of which are mainly recognized by the base and mouth, most of the shells are only figured 

 on the back. Very often the characters of the aperture are not even stated. Remarkable 

 liberties are, moreover, sometimes taken with geographical facts, to the great astonishment 

 of Americans, who expect even their schoolboys to avoid such statements as at sp. 57, Tr. 

 diminutives, Rve., " Oahu Islands ; " and at sp. 1, Lingula ovalis, Rve., " from W. II. 

 Pease, Esq., residing at Honolulu, one of the Sandwich Islands." 



* P. compta is a distinct Californian species ; its Pvarieties pass into puUa. If Mr. 

 Keeve can be followed in uniting topulla, pulchella, Reel. \^affin\s-\-tessellaia-\-pulclieUa 

 -\-concinna, C. B. Ad. ; + tenuis, Phil. -,+ inter media, Scacchi -,-+-Capensis, Dkr. ;+elon- 

 gata, Krauss, Gould's species should join this goodly company, rather than perforata. 

 The same standard of union followed among the large shells would greatly lessen the size 

 of this costly work. 



f So is fhasianella rulra, Pease MS., sp. 18, which belongs to Alcyra, A. Ad. j allied 

 to tiiw/ielus, 



54 



