MOLLUSCA. 597 
pi. 26. fig. 3, Shanghai. An. tenuis (Gray) and gibha (Cantor), also from 
Shanghai, are mentioned in the same paper. 
Anodonta exilis {h%f\)'=}ool{ta (Mouss.) = st7tyM« (Kiist.), Siam, Sumatra, 
and Java, in two varieties. — A. purpurea, N n\. — hurroughiana, suberassa^ 
tenuis, crepera, and gracilis (Lea)= Unio hengalcnsis (Lea)= TJnio verecundus 
(Gould). It is a very variable shell, the only one of this family known from 
the Philippines. Martens, Mai. Bliitt. xiv. p. 12. 
Anodonta dallasiana, tryonii, williamsii, doliaris, Iconensis, and bealei, all 
North American, and described by Lea some years ago, are figured in Journ. 
Acad. Nat. Sci. Philadelphia, vol. vi. part 1. 
Anodonta subcarinata, sp n., Currier, Am. Journ. Conch, iii. p. 113, pi. 0. 
fig. 5, Michigan. 
MuTELI1)A5. 
Pleiodon. Two species are figured in Reeve’s Conchologia Iconica, part 
268. — T. A. Conrad remonstrates against the identity of his Pleiodon mac- 
murtrii with Iridina ovata (Swains.). Am. Journ. Conch, iii. p. 4. 
Spatha alata, 7iyassaensis, modesta, and natalensis (Lea) figured in Journ. 
Acnd. Nat. Sci. Philad. vol. vi. part 1. 
Mytilidaj. 
Mytilus edidis (L.). Its varieties are arranged by WoinkaufF in the fol- 
lowing manner (i. pp. 224-227) : — 
1. Atlantic varieties t a. incurvata (Penn.) ; b. abbreciata (Lam.) ; c. pellu- 
cida (Penn.) and subsaxatilis (Williamson) (this is also common at 
Algiers, on the anchor-chains of the port, to the depth of two fathoms j 
small, but esteemed ns food) ; d. retusa (Lam.), 
2. Mediterranean varieties =ilf. gallopromncialis (Lam.) : a. ungulata (L.), 
also on the Atlantic coast of France and England; b. Jlavci (Poli), this 
occurs at Algiers only in certain seasons ; c. sagittata. 
Mytilus edidis. Bay de Castries ; M. ungulatus (Lam.), Hakodate ; M. dun- 
heri (Reeve), Hakodate and Sachaliu. Schrenck, 1. c. pp. 504-608. 
Mytilus pictus (Born) = rt/e?’ (Gmel.) = rt/’nmmcs — elongatus 
(Orb. not Lam.), a variety = smaragdinus (Bunker, not Lam.), Algiers on 
rocks in a depth of ten and more metres, attains to a length of 126 mil- 
limetres, and is rather variable in breadth; il/. perna (L.) and elongatus 
(Lam.) are different species, the first blue, the second white and violet. 
Weinkaiiff, i. pp. 227-229. 
Mytilus minimus (Poli) is Mediterranean, and does not occur in the British 
Channel. — M. crispus (Cantraine), distinguished by its malleated surface, at 
Venice, in company with the preceding, also found boring. Weinkauff, i. 
pp. 229, 230. 
Mytilus {Aulacomyd) janeirensis (Bunker) and M. ater (Zelebor), Reis. 
Novar. Moll. pi. 2. figs. 29 & ,30. 
Mytilus {Septifer) virgatus (WTegm.) = bifurcatus (Conrad) = Septifer her- 
mannseni, crassus,furcatus, and (Bunker), from Hakodate; dilFer- 
ences of age pointed out. Schrenck, I c. pp. 608-612. 
Modiola adriatica (Lam.)=*^?#/?}7rt of Mediterranean conchologists, not of 
Lamarck tulipa, and Iccvis of Sandri, common in Balmatia, and very 
variable in colour. Weinkauff, i, p. 219. 
1867. [vol. IV.] .2 K 
