1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 361 
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‘Description esp. Galateza,’ p. 18 (with var. triangularis, p. 14). Galatea rubicunda 
Puitipri, 1849, Zeitschr. f. Malakoz., V, (1848), p. 190 (locality unknown); 1851, 
‘Abbild. Beschr. Conchyl.,’ III, p. 128, Pl. 1, fig. 1. Brrnarp1, 1860, ‘Monogr. 
Galatea,’ p. 37, Pl. 1, figs. 1 and 2 and PI. vin, fig. 2. Sowmrspy, 868, ‘Conchol. 
Iconica,’ XVI, Galatea, Pl. vi, figs. 14a, b. Galatea philippiana MorELET, 1858, 
‘Séries Conchyl.,’ I, p. 32 (new name for G. leta and G. rubicunda Philippi). Galathea 
philippiana More LET, 1868, ‘Voy. Welwitsch, Moll. Terr. Fluv.,’ p. 99. Galatea 
versicolor ‘‘Morelet”? H. and A. ApAms, 1856, ‘Gen. Recent Moll.,’ II, p. 408, name 
only; said by Morelet, in P. Fischer, 1856, Journ. de Conchyl., V, p. 344, to be an 
unpublished name for G. leta and rubscunda Philippi. This form has been several 
times collected in Angola (in a little river near Loanda; Quanza River; Dande 
River near Loanda; and Bengo River; all these are in close proximity). Morelet, 
who studied a large series taken by the corvette ‘‘Elan”’ in the Dande River, found 
that leta and rubicunda of Philippi are fully connected, and merely mutations of the 
same. Philippi’s types of both, he states, were from the same ‘“‘Elan” lot. A. Nobre 
(1909, Bull. Soc. Portugaise Sci. Nat., III, Suppl. 2, p. 108) added Galatea bengoensis 
Dunker to the synonymy and considered Galateia bocagiz Brito Capello a robust 
variety of lzta. We provisionally list leta and bocagit as subspecies of bengoensis, the 
last mentioned name having page priority. | 
: Egeria bernardit (Dunker) = Galatea bernardit DunKsEr, 1856, Journ. de Conchyl., 
V, p. 338, Pl. xu, fig. 3 (“Guinée prés du Cap Lopez’”’). Brrnarpt, 1860, ‘Monogr. 
Galatea,’ p. 32, Pl. v, figs. 1-5, and Pl. vit, fig. 8 (with var. versicolor and var. tri- 
angularis, on p. 33). SowErBy, 1868, ‘Conchol. Iconica,’ XVI, Galatea, Pl. 1, fig. 
4a, b, c. Galathea bernardii More.et, 1868, ‘Voy. Welwitsch, Moll. Terr. Fluv.,’ 
_ p. 99 (Bengo River, Angola). Galateia bernardii DavrzmnpEre, 1912, Ann. Inst. 
Océanogr. Monaco, V, 3, p. 93 (Ogowe River, Gaboon). 
Egeria biangulata (Sowerby) =Galatea biangulata Sowmrsy, 1868, ‘Conchol. 
Iconica,’ XVI, Galatea, Pl. v, fig. 12. Habitat unknown. We have seen specimens 
from Angola: Pungo River, in the district of Loanda, Mus. A. N. 8. Phila. (collector 
unknown). This appears to be a valid species. 
Egeria cailliaudii (Bernardi) =Galatea cailliaudii Bernarpi, 1860, ‘Monogr. 
Galatea,’ p. 48, Pl. rv, figs. 1 and 2 and Pl. rx, fig. 3. Africa. 
Egeria chemnitzii (Philippi) = Galatea chemniteti Puiuiprt, 1851, ‘Abbild. Beschr. 
Conchyl.,’ III, p. 124, based upon Venus xgyptica Cuemnitz, 1795, ‘Conchyl. Cab..,’ 
XI, p. 231, Pl. cctz, figs. 1985 and 1986. Galatea xgyptiaca. “Chemnitz”” BERNARDI, 
1860, ‘Monogr. Galatea,’ p. 39, Pl. v1, figs. 1 and 2 and PI. rx, fig. 1. Probably not 
Sowrrsy, 1868, ‘Conchol. Iconica,’ XVI, Galatea, Pl. v, figs. 9a, b. Habitat unknown. 
According to Chemnitz, ‘‘ Vermuthlich beym Nilstrom.”’ Bernardi refigured the unique 
valve in the Royal collection of Denmark. 
Egeria concamerata (Duval) = Gal. [athea| concamerata Duvat, 1840, Rev. Zoolog. 
Soc. Cuviér., p. 211. Galatea concamerata BERNARDI, 1860, ‘Monogr. Galatea,’ p. 20, 
Pl. u, fig. 1; Pl. mm, figs. 1 and 2; and Pl. vim, fig. 1 (with var. rosea). SOWERBY, 
1868, ‘Conchol. Iconica,’ XVI, Galatea, Pl. 11. figs. 2a, 6. Africa. 
Egeria congica (O. Boettger). See p. 362. | 
Egeria cumingit (Bernardi) =Galatea cumingu ‘“Dunker’” Brrnarpi, 1860, 
‘Monogr. Galatea,’ p. 35, Pl. v1, figs. 7 and 8 and PI. 1x, fig. 8 (“Le Gabon”’). Gala- 
teia cumingii Brrro CapPELLo, 1878, Mem. Ac. Sci. Lisboa, Cl.. Sci. Math. Phys. 
Nat., N.S., V, 2, ‘Description Esp. Galateza,’ p. 14, PI. 1, figs. 1-4 and Pl. u1, figs. 1 
