EULAMELLIBRANCHIATA. 71 



\Pachyodon, n. gen. for Unio listeri, Sby., and others ; Stutchuury, viii, 

 p. 4.S1. 



\Pachyudoa imbricatus, p. 483, cuneatus, Lias, lanceolata, p. 484, Oolite, 

 attemuiMs, ovalis, p. 485, Lias, England ; Stutchbury, viii, figg. : 

 ■{P. gerardi, p. 390, lateralis, sulcatus, rugostis, subrotundus, bipetmis, 

 p. 391, dawsuni, manus, rhhidii, amygdala, exoletus, dubius, p. 392, 

 subtriangidaris, smithii, embletoni, hvyii, agrestis, siinilis, p. 393, 

 titrgidus, nitcleus, lalaydsii, aldamii, antiquus, p. 394, trausversus, 

 hamutus, vetustus, levedensis, p. 395, pyramidatus, p. 396, Carboni- 

 ferous, British Isles ; Brown, xii, figg. : n. spp. 



Panopcea, note on, with fig. ; Bean, Mag. Nat. Hist, viii, p. 562. 



fPanopa'a delicatissima, Inferior Oolite, England ; Lycett, (2) vi, p. 423 : 

 n. sp. 



Pharellu, n. gen. for P. javanica and others; Gray, (2) xiv, p. 24. 



\ Pleurorhynchus australis, Palajozoic, N. S. Wales; M'=CoY, xx, p. 300, 

 tig. : n. sp. 



Saxicava spins a byssus ; West, (3) iii, p. 511 ; Robertson, (3) iv, p. 80. 



VENERACEA and TELLINACEA. 



Ainphides7)ia intermedia, Ireland; Thompson, xv, p. 318, fig.: f^l. decus- 

 satum, Cornbrash, Sca.rborough ; Bean, Mag. Nat. Hist. n. s. iii, p. 59, 

 hg. : n. spp. 



(Jiscella, n. gen. for C. horsfieldii; Gray, (2) xi, p. 43. 



Ceronia, n. gen. for C. denticidata ; Gray, (2) xi, p. 44. 



Cyclina sinensis, animal, Gray (288). 



Cytherea ovum, liab. unknown ; Hanley, xvi, p. 356 : +C picta, Inferior 

 Oolite, England ; Lycett, (2) vi, p. 423 : n. spp. 



■fCytherojJsis aldensis, Ayrshire, Canibro-Silurian ; M'^CoY, (2) viii, p. 387: 



II. SJ). 



Darina, n. gen. for D. solenoides ; Gray, (2) xi, p. 42. 



Davila, n. gen. for D.polita, n. sp. [nom. nud.] ; Gray, (2) xi, p. 44. 



Eustonia, n. gen. for E. rugosa ; Gray, (2) xi, p. 42. 



Elizia, n. gen. for !Solen orbictdatus. Gray ; Gray, (2) xiv, p. 24. 



Ervilia japonica, Japan ; Adams, (3) ix, p. 224 : n. sp. 



Gnathodoa, n. gen. for G. cuneata. Gray; Gray, Mag. Nat. Hist. n. s. i, 



pp. 337, 376. 

 Harvella, n. gen. for H. elegans ; Gray, (2) xi, p. 42. 

 Hettangia, Turquem., is a synonym of Tancredia; Lycett, (2) xi, p. 221. 

 fisodonta, note on ; Lycett, (2) xx, p. 367. 

 Lucinopsis undata, notes on ; Clark, (2) ix, p. 400. 

 Lutraria senegalensis, Africa, elongata, Prince of Wales I., p. 374, zealandica, 



New Zealand, p. 375 ; Gray, Mag. Nat. Hist. n. s. i : n. spp. 

 Mactridce, notes on ; Gray (248). 

 Muctra discors, hab. unknown, ornata, China, p. 371, exoleta, hab. imknown, 



reevesii, China, vitrea, hab. unknown, p. 372 ; Gray, Mag. Nat. Hist. 



n. s. i : M. sav.liana, China ; Gray, i, p. 29 : n. spp. 

 Mactrella, n. gen. for M. striatula; Gray, (2) xi, p. 41. 

 Mactrimda, n. gen. for M. plicaria; Gray, (2) xi, p. 41. 

 Mulinia, h. gen. for M. typica, bicolor, p. 375, hab. unknown, donaciformis. 



South Sea, byronensis, exalbida, South America, p. 37(i, n. spp., and 



others ; Gray, Mag. Nat. Hist. n. s. i. [See also p. 337.] 

 Naranio, n. gen. of Pctricolidoe for N. costata and radiata [? n. spp.] ; Gray, 



(2) xi, p. 38. 

 \Notomya, n. gen. for N. secMriformis, clavata, n. spp., Pala30zoic, N. S. 



Wales ; M«CoY, xx, pp. 304 & 305, figg. 

 iPac/tydomus gigas, sacctdus, p. 301, ovalis, pusillus, p. 302, Palaeozoic, N. S. 



Wales; M'-'Coy, xx, figg. : n. spp. 



