ANOMIA. 



Plate II. 



Species 7. (Mus. Cuming.) 

 Anomia AM.4B/EUS. Anotit, testa suhoblonyo-ovatd, tenid, 



laviijatd, argenteo-albd. planulatd, umhoiie mhacuto. 

 The silvery Anomia. Shell somewhat oblong-ovate, 



thin, smooth, silvery-white, rather flat, umbo sharp. 

 Gr.\t, Pro. Zool. Soc. 1849, p. 115. 

 Hab. Island of Burias, Philippines (on stones, in sand, at 



a depth of ten fathoms) ; Cuming. 

 A small, silvery-white, transparent shell, of a rather 

 spoon-shaped, oblong-ovate form, having a sharp, well-de- 

 fined umbo somewhat removed from the margin. 



Species 8. (Fig. a, b, Mus. Cuming.) 

 Anomia Uumpheeysiana. Anom. testa Miqim ovatd, 



solidiusculd, concentrice striata, sulipcllucidd, cupreo- 



rufescente, umbone acuta. 

 Humphreys' Anomia. Shell obliquely ovate, rather 



solid, concentrically striated, somewhat transparent ; 



coppery-red, umbo sharp. 



Uab. •? 



An odd valve, from the collection of George Humphreys, 

 the old dealer, and predecessor of the elder Sowerby. 

 Though of comparatively solid texture, it is transparent, 

 and of a coppery-red colour. The oblique, coppery-red 

 shell represented in the nest Plate at Fig. \i a, b, and 

 which is known to be from the same old collection, ap- 

 pears to be another example of the species, ribbed from 

 the surface of its place of attachment. 



Fig. 9. (Mus. Cuming.) 

 This shell, ticketed in Mr. Cuming's collection A. stria- 

 tus, Gray, does not appear to iiave been described under 

 that name, and proves to be a younger state of A. eli/ros, 

 figured in the prereding Plate. 



Species 10. (Fig. a, I, Mus. Cuming.) 

 Anomia cyt^um. Anom. testd suborbiculari, radiatim 

 eorrugato-costatd, cosfis subobsoletis, pellucido-albd, 



circa umbonem aurantio-ccneatd, itmbonc acuto ; raird 

 in/eriore virescmtc. 

 The shield Anomia. Shell somewhat orbicular, radi- 

 ately corrugately ribbed, ribs rather obsolete, trans- 

 parent-white, orange-bronzed around the umbo, um- 

 bo sharp ; lower valve greenish. 

 Gray. Pro. Zool. Soc. 1849, p. 11,5. 

 Hub. Mouth of the Zangtze Keang Elver, Chiiui; Fortune. 

 This species is characterized by a faint wrinkle-ribbed 

 sculpture in the upper valve, which is not derived from 

 the surface of any foreign body, as the under valve is per- 

 fectly smooth. 



Species 11. (Mus. Cuming.) 

 Anomia ephippium. Anom. testa subobligne orbiculari, 

 plus niinm irregulari, rude striata, interdum Jimbri- 

 tdo-sqttamatd ; lutescente-albd. 

 The saddle Anomia. Shell somewhat obliquely orbi- 

 cular, more or less irregular, rudely striated, some- 

 times fimbriately scaled ; yellowish-white. 

 Linnaeus, Syst. Nat. p. 1150. 



Anomia eledrica, cepa, and squamiila, Linnaeus. 

 Anomia punctata, Chemiutz. 

 AnomicB Jlexuosa, rugose, and cylindrica, Gmelin, 

 Anomia margaritacen, sulcata, and pectinifonn is. Poll. 

 Anomia cymbiformis, Maton and Racket. 

 Anomia violacea and siriatula, Bruguiere. 

 Anomia pyriformis and fornicatn, Lamarck. 

 Anomia polymorplia and scabrella, Philippi. 

 Anomia tubularis, Turton. 

 Anomia coronata. Bean. 

 IM. European Seas. 



The long list of synonyms of this species above quoted 

 show how largely eonchologists have been deceived by its 

 Pi-otean character. On whatever foreign body the Ano- 

 mia epliippium attaches itself, the shell grows with some 

 coiTesponding impression of the surrounding irregularities ; 

 and along ivith this it differs in texture, etc., at different 

 periods of its growth, and according to the depth and cir- 

 cumstances of its habitation. 



August, 1859. 



