MOLLUSCA. 
499 
Am. Joiirn. Conch, iv. pp. C9-71) : — 8 species of Clidiophora j 6 Coclodon ; 
10 Pandoj'a, including Kcnnerlia (Carp.) ; 12 Myodora, 
Pelopia, g. n. External appearance of Ixariia (ljmQ\C)—Rup{cola (Fleuriau 
de Bellevue) ; hinge similar to that of Periploma (Schumacher), but the liga- 
mental process without strengthening rib, although prominent, and the beaks 
not fissured. P. hrevifrons, sp. n., locality unknown. II. Adams, Proc. Zool. 
Soc. 1808, p. 16, pi. 4. fig. 16. 
CARDIACEA, Cuv. [Veneracea, Ad.). 
Mactrida5. 
Mactra helmcea (Cliemn.). Hidalgo doubts the identity of M. glauca 
(Born) with this species. Journ. Conch, xvi. p. 29. 
Tellinid>e. 
Tryon enumerates, in his catalogue of this family (Appendix to Am. 
Journ. Conch, iv. pp. 72-126), the following genera and species: — 
Subfam. Tellininm : 5 species of (Modeer) ; 70 (Schumacher) 
[concerning this name, see Zool. Record, vol. i.]; 4 Sanpiitnolaria \ 39 
Jliatula^ including Psammotea\ 2 EKzia) 271 Tellinay including the sub- 
genera Tellinella (Gray), Peronaioderma (Morch), Mocra (II. et A. Adams), 
Arcopagia (Leach), Phylloda (Schumacher), Angidus (Miihlf.), Tellinidos^ 
(Lam.), Homala (Morch), and Pcroncca (Poli) ; 17 Strigilla ; 3 Cap>sa ; 85 Ma- 
coma\ 2 Q^daUna\ 14 Metis \ 3 Tellidcra ; 6 Gastrana) 6 lAicinopsis. 
Subfam. Donacinae : 92 species of Donax] 6 Iphigenia) 2 Fischeria) 16 » 
Galathea. 
Subfam. Scrobiculariinm : 8 species of Scrohicularia ; 2 Lcptomyn ; 1 Leio- 
myn’y 7 Theora] 5 Ahra — Syndosinya (Rdcl.) ; 70 6'cmc/c (Schum.)=^w?_/;Ae- 
desma (Lam.) ; 1 Thyella (II. Ad.) ; 14 Ctimingia (Sow.). 
Subfam. Paphiinoe : 11 species of Paphia] 4 Mesodesma] 4 Ceronia] 8 
Donacilla ; 2 Anapa ; 3 Davilla ; 5 Ervilia. 
Tellina dliptica^ reticulata, tenuilirata, hrevirostrata, suhlenticularis, ohliqui- 
striata (Kingsmill Island), suhtrigona, tenuiscidpta, declivis, cerasum, opalina, 
elevata, cuneolus, armata, eequistriata, striatissima, producta, myceformis, obtusa, 
helcheri, ensiformis, Jifcnsis, crebrimacidata, plena, mactrcefoi'niis, and succinea, 
spp. nn., Sowerby, in Continuation of Reeve’s Conchologia Iconica, parts 270, 
271 ; the localities of most of them are not known. 
Donax atlantica. This name is cancelled by G. Hidalgo and that of vit- 
tatus (Da Costa) adopted, Journ. Conch, xvi. p. 30. 
Galatea (Morelet, 1858)=/<e^a and ruhicunda (Philippi, 1848), 
and G. bernardi (Hunker), both in the river Bengo. Morelet, Moll. Terr, et 
Fluv. Voy. Welwitsch, p. 99. 
Scrobictdaria (Capsa) rostrata, sp. n., II. Adams, Proc. Zool. Soc. 1868^ 
p. 292, pi. 28. fig. 16, Seychelle Islands. 
Venerida;. 
Dr. Pfeipfer calls the attention of conchologists to the inequality of the 
posterior area in the valves of some species of Venus, as casina, verrucosa, 
rugosa, graveScens, isabellina, &c., and also of some species of Dosinia, as 
grata and trailli (A. Adams) ; the two last are fully described by him ; he 
