MOLLUSCA. 
689 
lina, (Ufjicilis, Georgia and Virginia, Imcccumii, Texas, topekaensis^ Kansas and 
Nebraska, corvuncubis, Georgia, vallatus, Alabama river, jp/amor, Tennessee 
and Virginia, refulgens, Mississippi, spharictis, Mississippi. Lea, 1. c. pp. 303- 
310, pi. 46-51. figs. 116-132. 
Unio strebeli and ve7’ac7-uzensts, Vera Cruz, Lea, 1. c. pp. 618 and 620, pi. 61. 
fig. 131, pi. 62. fig. 133 ; U. gra77ade7isis, e7icarp7is, gahhia7ius, and nicar'agucnsis, 
ibid. pp. 293-296, pis. 42 and 43. figs. 103-107, Lake Nicaragua ; U. ortoTiiij • 
Ecuador, ibid. p. 621, pi. 62. fig. 134; U. paraguayensis, Paraguay, ibid, 
p. 271, pi. 35. fig. 86 ; U. locellus, Buenos Ayres, ibid. p. 264, pi. 33. fig. 79 ; 
U. rtigososulcntus, Central America, parcus, app7'i77ius, pccuUaris, Jh'mus, am- 
pnllaccuSj acuth'ostriSf South America, without indication of locality, U, 
rtifofuscus and p7’U7ioides, probably South America, ibid. pp. 262-270, 282 
ai‘id‘623, pis. 33-36. figs. 77-84, pi. 39. fig. 96, and pi. 63. fig. 136. 
All these species are redescribed, with the same plates, in Lea’s Observ. 
Gen. Unio, vol. xii. 
U7iio lo7igus,Jacobcsiis, laiidbecld, valdivia7ius, solidulus, casablaficce, 77iontanus, 
fo7icki, diplodo7i, cnlchagimisis, and ia7ithi7ius, spp. nn., from Peru, named and 
described by Philippi, Mai. Bllitt. xvi. pp. 44-49, figured in Pfeiffer’s Novitat. 
iii. pp. 477-486, pis. 103 and 104. 
Castnlia. Soworby’s Monograph in Hoove’s Conchologica Iconica contains 
on three plates the following species: — (Wibigua (Lam.), return (IIupi5), 
S('hombergia7ia \scho77ibiirghia7xa\, sp. n., pi. 1. fig. 3, British Guyana; ovata, 
pi. 1. fig. 4, Brazil; lianlexjana, pi. 1. fig. 6; carolme7isis, sp. n., pi. 2. fig. 6, 
South Carolina [perhaps a young specimen of U7iio ~\ ; quadrata, sp. n., pi. 2. 
fig. 7 ; co7'data (Humphrey), pi. 2, fig. 8 ; 77iulticostata (Hup«5), lateriquadrata 
(Orb.), turgida fllup4), acuticostata (Hiip4), and dolabcUa, sp. n. 
Castalia ccai'hiata, sp. n., Puerto-nuovo, New Granada, with notes on C, 
injlata (Orb.), Mousson, Mai. Bliitt. xvi. p. 185. 
llyria. Sowerby’s Monograph in Reeve’s Conchologia Iconica contains 
on five plates the following species : — co7Tugata (Lam.), coxitorta (Lea), 
Shanghai ; exasperata, sp. n., British Guyana, pi. 2. fig. 3 ; laiialata, sp. n., 
pi. 2. fig. 4, British Guyana ; 7'ugisissima, sp. n,, River Amazon, pi. 3. fig. 6 ; 
avicularis (Lam.), traTisveisa (Hupe), castelnaudii (Hupe), co7nplanata (Hup^) ; 
recta, sp. n,, pi. 5. fig. 10, locality unknown ; syrmatophora (L.), b7'oumia7ia 
(Jica); alata, sp. n., pi. 6. fig. 13, Guyana. [All these species are South 
American except the second, which scarcely belongs to this genus.] 
[7/yrm] Ti'iqncira cor7'ugata and T. avicula7'ia, from the Amazon river, 
Mousson, Mai, Bliitt. xvi. p. 186. 
Vlagiodon 7'otimdatus, sp. n., Mousson, 1. c. p. 186, northern part of South 
America. 
Moxiocondxjlcca mardinensis. Lea, Joum. Acad. Nat. Sc. Philad. vi. p. 262, 
pi. 30. tig. 70. — M. lcntifo7’77iis ^and p>azii. South America, Lea, ibid. pp. 272, 
273, pi. 36. figs. 86 and 88. 
Micx'ocondylaa, g. n., proposed for Margaritana bonellii (F^r.), on account 
of the gills being united with the mantle in their whole length, whereas in 
the typical Marg. mnrgaxitifcra they are somewhat separated behind. Hinge 
only a little tubercle in each valve. Probably also Aiiodoiita lata (Raf.)= 
Unio dehiscc7is (Say) will belong to this genus. W. V. Vest, Verhandl. u. 
Mittheil. vSiebenbiirg. Vereins f. Naturwiss. xvii. 1866, pp. 193-201, with 
two plates. 
