80 Molt. 
VII. MOLLUSCA. 
EULAMELLIBRANCHIA TA. 
ANATINACEA. 
Structure of the gill ; Ridewood (443). 
Allogramma , n. sect, of Lyonsia , type L. formosa , Jeff. ; Dall, Tr. Wagner 
Inst, iii, p. 1514. 
Aporema , n. gen., type Pholadomya arata , Verrill; Dall, t. c. p. 1532. 
Heteroclidus, n. subgen. of Pandora, type Clidiophora punctata, Conrad ; 
Dall, t. c. p. 1518. 
PHOLADACEA. 
Structure of the gill ; Ridewood (443). 
Fistulana clava piercing Mitra ; Sowerby & Fulton (493). 
Pholas Candida, n. var. ; Marshall (330), p. 52. 
Xylophaga , on known species; Smith (481). 
Xylophaga prcestans, Northumberland ; Smith, P. Malac. Soc. London v, 
p 328, fig. : n. sp. 
MYACEA and CARDIACEA. 
Structure of the gill ; Ridewood (443). 
Cardium, variation of ribbing in one species ; Baker (23). 
Cardium levisulcatum, Maidive Is. ; Smith (487), p. 624, fig. : n. sp. 
Ceratisolen, anatomy; Bloomer (52): G. legumen, malformed specimen; 
Bloomer (55). 
Corbula rugifera , S. Africa ; Smith, P. Malac. Soc. London v, p. 399, fig. : 
n. sp. 
Echinochama calif ornica, Lower California; Dall, P. U. S. Mus. xxvi, 
p. 950, fig. : n. sp. 
t Hippurites, evolution and classification ; Toucas (534). 
Machcera quadrasi, Philippines ; Hidalgo (234), p. 26 : n. sp. 
f Mouretia, n. sect, of Radiolites for M. arnaudi, n. sp., Santonian ; Dou- 
vill6, Bull. Soc. geol. France ii, p. 480. 
Parvicardium exic/uum, n. varr. ; Bellini, Boll. Soc. Napoli xvi, p. 26. 
Pharella onentalis, anatomy; Bloomer (56). 
f Prceradiolites, n. gen., type Radiolites Jleuriaui ; DouvillIs, Bull. Soc. 
geol. France x, p. 476. 
Solecurtus, anatomy ; Bloomer (52). 
Rolen , classification of British species ; Bloomer (53). 
t Solenomorpha, n. n. for Solenopsis, M c Coy nec Westwood; Cockerell, 
Nature lxvii, p. 559. 
\ Solenopsis renamed Solenomorpha, q.v. 
Tagelus rufus, anatomy ; Bloomer (56). 
THdacna lamarcki, n. n. for T. gig as, Lam. nec Linn., p. 385, reevei, n. n. 
for T . elongata, Rve. nec Lam., p. 389 ; Hidalgo (234). 
VENERACEA and TELLINACEA. 
Structure of the gill ; Ridewood (443). 
Gallista subdiaphana, n. var. ; Arnold, Mem. Calif. Ac. iii, p. 144. 
Cardilia reeveana, n. n. for G. inermis , Rve. nec Desh. ; Hidalgo (234), 
p. 371. 
Garyatis reeveana , n. n. for Cytherea citrina , Sby. nec. Lam. ; Hidalgo 
(234), p. 200. 
