590 
ZOOLOGICAL LITERATURE. 
Anodon. Sowerby figures in the Conchologia Iconica, on pis. 21-24, 
species 82-95, among which A. amethystus^ locality unknown, and tricostatus, 
China, are new. 
Anodonta anatina. Its branchial opening is not only comparatively but 
actually much larger, and fringed with much more delicate and numerous 
tentacles than in Anodonta cyynea. Normally this opening serves only for 
the entrance of a water-current, which is expelled through the anal orifice ; 
but under peculiar circumstances (for example, when the former is covered 
by sand or mud) the current can also enter by the anal orifice. Lloyd, Ann. 
& Mag. Nat. Hist. vol. v. p. 66. 
H. V. Maltzan reduces the German species of Anodonta to two, cyynea and 
pisdnalisy subordinating to the former as distinct varieties cellensis (Schrot. 
[Gmel.]), rostrata (Kokeil), intermedia (Lam.), and complanata (Ziegl.) j to 
the \&Xiox potiderosa (0. Lfr.), venlricosa (C. Pfr.), and anatina (L.). Archiv 
d. Vereinsf. Naturkunde in Mecklenburg, 1869, pp. 170-178. 
Anodonta youkanensis, Upper Youkan River, Arctic America, A. yrana- 
densiSfjewettii, lenticular is, hridyesii, and incequivalva, all from Lake Nicaragua, 
formerly indicated, now fully described and figured by Lea, Joiirn. Acad. 
Nat. Scienc. Philad. vi. pp. 287-293, pis. 40-43. figs. 99-108. 
Anodmita streheli, Vera Cruz, napomsis, Equador, figured by Lea, 1. c. 
pp. 322 and 324, pi. 62. fig. 136, and pi. 63. fig. 137. — A. pazii, South America, 
ibid. p. 275, pi. 36. fig. 87. 
Anodonta ivallisi, sp. n., and A. limonoica (Orb.), both from New Granada, 
Mousson, Mai. Bliitt. xvi. p. 188. 
Anodonta suhrostrata, ucayalcnsis, suhsinuuta, and incarum, spp. nn., from 
Chile, named and described by Philippi, Mai. Bliitt. xvi. pp. 39-41 j figured 
in Pfeiffer’s Novitat. iii. pp. 486-488, pi. 104. figs. 1-11. 
Mycetopus pyymceus (Spix as Anodonta), Soft parts described by Lea, 
Journ. Acad. Nat. Scienc. Philad. vi. p. 276, pi. 23. figs. 3 & 4. 
Mycetopodus lonyinus (Spix), from the Amazon River, distinct from 
siliquosus (Spix), from Brazil and Paraguay. Mousson, Mai. Bliitt. xvi. 
p. 189. — M, weddelli found in Nicaragua, Tate, Am. Journ. Conch, v. p. 160. 
The Acaridce living parasitically in the shells of the Anodonta and Vnio 
of Germany are the subject of a paper by E. Bessels in Jahreshefte d. Vereins 
frir Vaterliindische Naturkunde in Wiirttemberg, xxv. 1869, p. 146. 
MuTELIDiE. 
Pleiodon macmurtrei (Conrad) distinct from Iridina ovata (Swains.). 
Conrad, Am. Journ. Conch, v. p. 104. 
Spatha hartmanni (Martens) and nilotica (Eer.) from the Yoriba River, 
Western Africa. Martens, Mai. Blatt. xvi. p. 74. 
MvTILIDiE. 
Mytihis ci'assitesta (Lischke), Japan, Lischke, Moll. Jap. p. 151, pi. 11 j 
M. dunkeri (Reeve) from Nangasaki, Lischke, ibid. p. 153, pi. 10. figs. 7, 8, 
Modiola modiolus, circumpolar, also in Japan, Lischke, ibid. p. 167. 
Modiola, sp., nearly allied to the Mediterranean J/. adriatica (Lam.), 
figured in Descript, do TEgypte, pi. 11. fig. 4, Gulf of Akaba; Modiola 
