82 Moll 
VII. MOLLUSCA. 
Guna dalli , Florida; Vanatta, P. Ac. Philad. 1903, p. 759, fig.: n. sp. 
Gyamium subquadratum , Antarctic ; Pelseneer (391), p. 15, fig. : n. sp. 
Gycladidoe of Lithuania ; Dybowski (161). 
Gy clas (Brug.) Link, is the proper generic name for the Venus islandica of 
Linn. ; Dall, P. Soc. Washington xvi, p. 8. 
Gyclocalyx , n. sect, of Corneocydas , type Pisidium scholtzii, Clessin ; Dall, 
Tr. Wagner Inst, iii, p. 1463 : also Dall, P. Soc. Washington xvi, 
p. 7. 
Gymatocyclas , n. sect, of Corneocydas , type Pisidium compressum , Prime ; 
Dall, Tr. Wagner. Inst, iii, p. 1463 : also Dall, P. Soc. Washington 
xvi, p. 7. 
Cypncardia sowerbyi , n. n. for C. oblonga } Sby. nec Linn. ; Hidalgo (234), 
p. 364. 
Cyrenidce , classification ; Dall (135). 
Cyrenodonax , n. sect, of Corbicula , type G. formosana, n. sp., Formosa ; 
Dall, Tr. Wagner Inst, iii, p. 1450 : also Dall, P. Soc. Washington 
xvi, p. 6. 
t Cyrenopsis, n. gen., type Mactra meeki , Eth., Cretaceous, N. S. Wales ; 
Etheridge, Mem. geol. Surv. N. S. Wales, Pal., No. 11, p. 28. 
f Cyrtodontarca, n. gen. for G. bakewellioides , n. sp., Palaeozoic, Russia ; 
Jakowlew, Mem. Com. geol. St. Petersb., n. s., Lim. 4, p. 12. 
Dalliella , Simpson, renamed Simpsonella, q.v. 
Diaurora , n. n. for Aurora , Simpson nec Rag. ; Cockerell, Nautilus xvi, 
p. 118. 
Erycina Jloridana , Florida ; Vanatta, P. Ac. Philad. 1903, p. 758, fig. : 
n. sp. 
Felania minor , Japan ; Sowerby, Ann. Nat. Hist, xii, p. 501 : n. sp. 
Fischeria , Bernardi, renamed Projischeria , q.v. 
t Fissilumda, n. gen., type Cytherea clarkei, Moore, Cretaceous, N. S. 
Wales; Etheridge, Mem. geol. Surv. N. S. Wales, Pal., No. 11, p. 31. 
Kellia natalensis , S. Africa ; Smith, P. Malac. Soc. London v, p. 396, fig. : 
n. sp. 
Lampsida ventricosus, visual area ; Landacre (307). 
Lampsilis rovirosai , figd. ; Pilsbry, P. Ac. Philad. 1903, p. 788. 
Lascea rubra , anatomy ; Pelseneer (391). 
Miodon , Cptr., renamed Miodontiscus , q.v. 
Miodon , Sandb., renamed Miodontopsis , q.v. 
Miodontiscus , n. n. for Miodon , Cptr. non Dumeril ; Dall, Tr. Wagner 
Inst, iii, pp. 1409, 1417 : also Dall, Nautilus xvi, p. 143. 
Miodontopsis , n. n. for Miodon x Sandberger non Carpenter ; Dall, P. Soc. 
Washington xvi, p. 5. 
Mytilus edulis , frequency of pearls ; M'Intosh (327) : M. galloprovincialis x 
formation of pearls ; Dubois (155). 
Pisidium baicalense , maculatum , raddei , trigonoides , figd. ; Kobelt in 
Rossmaessler (450) : P. walked var. mainense is a species ; Sterki, 
Nautilus xvii, p. 21. 
Pisidium ohioense, Ohio; Sterki, Nautilus xvii, p. 20: P. complanatum, 
Michigan, p. 79, rowelli , California, p. 80, cunei forme, Michigan and 
Minnesota, p. 81; Sterki, t. c. : P. ashmuni , New Mexico, danielsi , 
Indiana ; Sterki, t. c. p. 42 : n. spp. 
Pompholigina , n. sect, of DivaHcella , type Lucina gibba , Gray ; Dall, Tr. 
Wagner Inst, iii, p. 1388. 
Projischeria , n. n. for Fischeria , Bernardi non Robineau Desvoidy ; Dall, 
P. Soc. Washington xvi, p. 6 : also as n. sect, of Egeria , type Fischeria 
delesserti , Bernardi ; Dall, Tr. Wagner Inst, iii, p. 1455. 
Pseudokellya, n. gen. for Kellia cardiformis , Sm. ; Pelseneer (391), p. 48. 
Simpsonella, n. n. for Dalliella, Simpson nec Cossmann; Cockerell, 
Nautilus xvi, p. 118. 
