294 
ZOOLOGICAL LITERATURE. 
Unio rothi, sp. n., Bourgiiigiiat, Revue Zool. 1866, p. 338, pi. 16 \ Moll, 
nouv. p. 134, pi. 20, Lake of Tiberias. This is the U. UttoralU of Mousson, 
^ Catalogue des eoquilles recueillies par Roth,’ 1862, p. 64. 
Unio simonis and episcopalis, sp. n., Tristram, Proc. Zool. Soc. 1866, p.644, 
Sea of Galilee, Jordan, Orontes, and Leontes. 
Unio nodulosus. The shell figured under this name by Reeve, Conch. Ic. 
fig. 32, does not appear to be that described by Wood, bu,t merely the well 
known U. leai (Gray) from China. 
Unio wrightii and tortuosuSj sp. n., Lea, Proc. Ac. Nat. Sc. Philad. 1866, 
pp. 74 & 75, China. 
Unio peguensis, sp. n., Anthony, Am. Journ. Conch, i. p. 351, pi. 25. fig. 2, 
Pegu ; U. paivanusy sp. n., Morelet, Journ. Conch, xiii. p. 227, Siam j U. 
misellus and U. pellis-lacerti, sp. n., Morelet, 1. c. pp. 21 & 22, Siam. 
Unio ahnormis (Morelet, 1862) = (Lea), U. imperialis (Morelet, 
\^QQ')=.hainesianus (Lea), U.mandarinm (Morelet, 1864) (Lea): 
see Morelet, 1. c. p. 20. 
Unio hirhiiy ngassaetisis, aferida, sp.n.. Lea, Proc. Ac. Nat. Sc. Philad. 186.4, 
pp. 108 &, 109, Lake Nyassa ; Unio natalensisj Lea, ibid.. Natal. — U. vignona^ 
sp. n.. Reeve, Conch. Ic. fig. 120, no locality given. [West AMca ? Mr. 
Vignon has collected several land- and fresWater shells in Guinea.] 
Unio inoretonicuSf sp. n.. Reeve, 1. c. fig. 118, Moreton Bay, Australia. 
Unio doliaris, protensus, punctatusy amahilisy lyoniiy propriuSy cromweUiiy 
and marginisy sp. n.. Lea, Proc. Ac. Nat. Philad. 1866, pp. 88 & 89, United 
States. 
Unio striatissimusy deviatus, and sacculus, sp. n., Anthony, Am. Journ. 
Conch, i. pp. 166-167, pi. 12. figs. 1, 2 & 3, Tennessee j U. distansy sp. n., 
Anthony, 1. c. p. 166, pi. 13. fig. 2, Ohio; 
Unio mississippiensis (Conrad), Reeve, Conch. Ic. fig. 85 : this species has 
been quoted as MS. name by Reeve; but it is already mentioned in Lea’s 
^ Synopsis’ of 1862, and described as well as figured in Kiister’s new 
edition of Chemnitz, Unioy pi. 82. fig. 4. 
Unio electrinus, a new specific name proposed by Reeve, Conch, Icon, 
fig. 121, for U sayi (Ward), because it is said not to be the U. sayi of 
Tappan. [This species is described and figured as U. sayi also by Kiister, 
new edition of Chemnitz, Unioy pi. 83. fig. 1.] 
Unio cuneatusy Reeve, Conch. Icon. fig. 173, seems to be identical with U, 
patulus (Lea). Kuster, new edition of Chemnitz, pi. 87. fig. 5. 
Unio napeanensis (Conrad) and U. cocoduensis (White), are quoted as 
MS. names by Reeve, Conch. Icon. figs. 110 & 117 ; the former is already 
inentioned by Lea, 1862. 
Unio rufofuscusy sp. n.. Lea, Proc. Ac. Nat. Sc. Philad. 1865, p. 76, loca- 
lity unknown. 
Margaritana margaritifera. Mr. John Barker has published Notes on some 
Dissections of the Freshwater Pearl-Mussel ” in Proc. Nat. Hist. Soc. Dublin, 
vol. iv. 1865, pp. 111-113. The course of the alimentary canal is described. 
Distinct branchial ganglia have been found in the nerves supplying the gills. 
There are free communications between the alimentary canal and the water- 
vascular system, so as to admit of the foot being contracted suddenly and the 
