92 Moll . 
MOLLUSCA. 
Unio stepbaninii , Lake of Toblino, Province of Trento, moltemi , with 
var. umbrica , Tiber, and opisodartos , Chiari, Prov. of Brescia, spp. nn , 
Adami, Ball. Soc. mal. Ital. viii. pp. 129-138, pi. o, figs. 1-10. 
[/mo sinuatus (Lam.), a half shell of rather fresh appearance found in a 
ditch communicating with the upper Tiber; Statuti, Bull. Soc. mal. Ital. 
viii. p. 118. 
Unio savensis , pane-id , and striatulus , spp. nn., Drouet, Unionidae de la 
Serbie, pp. 15, 17 & 19, Servia. 
Unio alatus (Say), from Rock River, two-thirds of specimens males, 
the nacre of the femals much lighter, sometimes nearly white, that of the 
males purple, the intensity of its colour corresponding to the thickness of 
the mantle ; Upson, in “ Our Homo and Science Gossip,” Rockford, Illi- 
nois, 1881 (Dali, Am. Nat. xvi. p. 957). 
Unio. 17 Australian species enumerated, with synonyms and localities, 
E. A. Smith, J, L. S. xvi. pp. 307-313 ; and 18 by R. Tate, P. Linn. Soc. 
N. S. W. vi. pp. 567 & 56,8. 
Unio , the known species of New Zealand enumerated, and the soft 
parts of U. menziesi( Gray), described ; F. W. Hutton, Tr. N. Z. Inst. xiv. 
pp. 148 & 149, pi. ii. figs. a-d. 
Unio waikarense[-sis'] (Colenso, Tasm. J. of Nat. Sc. ii. 1841), Waikara 
Lake, North Island of New Zealand, Colenso, Tr. N. Z. Inst. xiv. p. 169. 
Margaritana margaritifera (L.). Pearls and pearl fishery in Saxony 
[see supra, Generalities, Use by Man]. 
Anodonta. Critical remarks on some species and enumeration of 20 
“ species” distributed in 14 groups, all found in the River Main at Frank- 
fort, including macrostena , impura , maganica , telmosca , bythiosca , manica , 
morini, ocnera, complacita, rhynehola, cod op sis, friedlanderiana (Bourgt., 
MS.), cypholena and frankfurti , described as. new; Servain, Hist. Aceph. 
Francf. pp. 27-64. 
Anodonta raclcetti (Bourgt., 1881, = Mytilus cygneus , Maton & Rackett, 
var., Tr. L. S. viii. 1807, pi. iii. fig. 3), Servain, l.c. p. 55, Edinburgh. 
Anodonta seqnanica and georgii (Bourguignat, MS.), pelceca (Servain, 
MS.), spp. nn., Locard, Cat. Moll. Fr. pp. 349-353, France. 
Anodonta. Different forms found in the Rivers Ouse and Foss ; Hey, 
J. of Conch, iii. pp. 269, 270 & 271. 
Anodonta nuttalliana , wahlamatensis, oregonensis , and calif or niensis 
(Lea) are all varieties of one species, generally distributed from British 
Columbia to California, and from the sea coast to Montana and Utah ; 
Stearns, P. Cal. Ac., Nov. 20, 1882. 
Anodonta iheringi , sp. n., Clessin, Mal. Bl. (2) v. p. 191, pi. iv. fig. 5, 
Taguara, Brazil. 
Pseudanodonta locardi and ararisana (Coutagne, MS.), spp. nn., Locard, 
Cat. Moll. Fr. pp. 348 & 349, France. 
Colletopterum , g. n. Near Anodonta , hinge arcuated, with a posterior 
feeble short lamellar tooth ; ligament internal, short ; lunula broad ; both 
valves soldered by a wing-like production of the dorsal margin. C. praz- 
claram and letourneuxi , spp. nn., Lower Danube. Bourguignat, Lettres 
Malacologiques, pp. 45-48, the latter figs. 16 & 17. 
Mycetopus plicatus, sp. n., Clessin, Mal. Bl. (2) v. p. 190, Taguara, Brazil. 
