EULAMELLIBRANCHIATA, PSEUDOLAMELLIBRANCHIATA. Moll. 83 
Spatha innesi , Upper Nile ; Pallary, Bull. Inst. Egypt, iii, p. 97, fig. : 
n. sp. 
Spathella fourtaui, Upper Nile; Pallary, t. c. p. 96, fig. : n. sp. 
Splicer iidce , classification ; Dall (135) : Spkcerium , several Mexican spp. 
figd. ; Pilsbry (415): S. tenellum , n. n. for S. fragile, Clessin non 
Meek & Hayden; Dall, Tr. Wagner Inst, iii, p. 1458: S. ssorense, 
Dybowski, p. 32, S. ( Cyrenastrum ) korotniewii , S. (Scaldiana) wester - 
lundi , p. 33, S. ( Corneola ) baicalense , p. 34, figd. ; Kobelt in Ross- 
MAESSLER (450). 
Sphcerium jalapensis , p. 786, ( Museulium ) novoleonis , p. 787, Mexico; 
Pilsbry, P. Ac. Philad. 1903, figg. : n. spp. 
+ Tellinocyclas, n. sect, of Corbieula , type Cyrena tellinella , Desh. ; Dall, 
Tr. Wagner Inst, iii, p. 1449: also Dall, P. Soc. Washington xvi, 
p. 6. 
Tropidocyclas , n. sect, of Corneocyclas , type Pisidium henslowianum , Shepp.; 
Dall, Tr. Wagner Inst, iii, p. 1463: also Dall, P. Soc. Washington 
xvi, p. 7. 
Unionidce, classification ; Sterki (507) : Byssus in young specimens ; 
Frierson (187): U. littoralis , requienii , n. varr. ; Kobelt in Ross- 
maessler (450), p. 28: U. mysticus , eurysselinus , figd. ; Pallary (381) : 
U. nieuwenhousi , n. var. ; Martens, SB. Ges. naturf. Berlin 1903, 
p. 425: U. desectus , n. var.; Sturany (509): U. declivis , Say, is a 
good species; Frierson (186). 
Unio ( Grandidieria ) tsadian us, Lake Tsad; Martens, SB. Ges. naturf. 
Berlin 1903, p. 8: U. fourtaui , Upper Nile; Pallary, Bull. Inst. 
Egypt, iii, p. 95, fig. : n. spp. 
Venericardia armilla , gouldii, incisa , Dall, and others, figd. ; Dall, 
P. U. S. Mus. xxvi, p. 951. 
PSE UDOLAMELLIBRANCHIA TA . 
Structure of the gill ; Ridewood (443). 
Amussium pancilirata, Maidive Is. ; Smith (487), p. 622, fig. : n. sp. 
Avicula albina , Lamk., note on; Dubqis, C.R. Soc. Biol, lv, p. 1638. 
Dacrydium albidum , Antarctic ; Pelseneer (391), p. 26, fig. : n. sp. 
f Deuteromya, n. n. for Dimya , Rouault nec Menke; Cossmann, Rev. 
paleozool. vii, p. 68: Criticism; Dall, t. c. p. 180: Reply; Cossmann, 
t. c. p. 181. 
Janira gardineri , Maidive Is. ; Smith (487), p. 622, fig. : n. sp. 
Lima gwyni , n. n. for L. elliptica , Jeff, non Whiteaves; Sykes, J. Malac. x, 
p. 104. 
t Mytiloperna, n. gen. for Perna americana , Forbes; Ihering, Revist. 
chflena vii, p. 123. 
t Nathorstella, n. gen. for JV. seviiplicata , n. sp., Devonian, Spitzbergen ; 
Kayser, Bih. Svenska Ak. xxxvii, Afd. iv, No. 2, p. 10 [omitted in 
1902]. 
t Obliquipecten, n. gen. for 0. Icevis , n. sp., Carboniferous, England ; Hind 
( 236), p. 114. 
\Odontoperna , ? n. subgen. of Gervillea for G. exilis , Stopp., Trias, S. Europe ; 
Frech, Centrbl. Mineral. 1902, p. 613. 
t Palceolima, n. gen. for Pecten simplex , Phillips ; Hind (236), p. 38. 
Pecten , variation and evolution in; Davenport (139): P. elegantissimus , 
p. 403, mundus, p. 404, notes on with figg. ; Bavay, J. Conchyl. 1. 
Pecten racovitzai , Antarctic; Pelseneer (391), p. 27, fig.: P. ( Chlamys ) 
vescoi, loc. incert., p. 399, ( C .) coudeini , New Caledonia, p. 401 ; 
Bavay, J. Conchyl. 1, figg. : P. cooper i, p. 621, maldivensis , p. 622 
Maidive Is.; Smith (487), figg. : n. spp. 
