SCIENTIFIC INDEX’ exlv 
knoxvillensis, 1039, 
logani, 1038, 1039. 
magna, 1038. 
manitobensis, 1041. 
nitida, 1040, 1039. 
oceana, 1041. 
striata, 935. 
subrotunda, 1043, 1041. 
Macluriidx, 1037, 930. 
Maclurina, 1041, 1038. 
cuneata, 1042, 1043. 
manitobensis, 1041. 
subrotunda, 1043. 
Macluriies, 1038. 
Macrochilina, 1079. 
bulima, 1079. 
cancellata, 1079. 
fenestrata, 1079. 
Macrochilus, 1079. 
Macrocypris, 632, 631, 689, 690. 
Macrodon, 533, 486. 
Macronotella, 683, 632, 681. 
scofieldi, 684, 683. 
Melonoceras, 803. 
Malletia, 583. 
Mantle of Gastropoda, 813. 
Matheria, 563, 484, 486, 504, 540, 564. 
recta, 563, 564. 
rugosa, 563, 477%, 509, 513, 540, 564, 616. 
tenera, 563, 564. 
Meekospira, 1079, 1080. 
planilateralis, 1080. 
subconica, 1080, 1079. 
Megalodon, 487. 
Megalodontide, 575, 487, 576. 
Megalomphala, 850, 875, 876, 915. 
Megalomus, 487. 
Megambonia, 485. 
jamesi, 498. 
Melania, 1079. 
antiqua, 1079. 
Metopias, 753. 
pachyrhyncha var. iongirostrata, 748. 
Metoptoma, 825, 822, 824, 828. 
alata, 838. 
alceste, 822. 
angusta, 822. 
anomala, 822. 
erato, 825. 
estella, 829, 834. 
eubule, 825. 
explanata, 830. 
hyrie, 825. 
instabilis, 835, 829. 
montrealensis, 840, 838, 841. 
niobe, 825. 
nycteis, 825. 
orithyia, 822. 
orphyne, 836. 
perovalis, 830. 
phillipsi, 829. 
quebecensis, 825, 836. 
recurva, 822. 
retrorsa, 822. 
similis, 829. 
simplex, 826, 829, 834. 
superba, 838, 839. 
trentonensis, 829. 
venilla, 838. 
Methods of study of Lamellibranchiata, 480. 
Microceras, $47. F 
jinornatus, 847. 
Modiella, 485. 
Modiola, 502, 501. 
Modiolodon, 52:1, 485, 504, 512, 522, 523, 535, 628. 
ganti, 521*. 
gibbus, 522, 
oviformis, 521*, 522. 
patulus, 521, 522. 
winchelli, 521*. 
Modiolopsis, 502, 478, 483, 485, 501-507, 509, 510, 
512, 514, 515, 517, 519, 520, 523, 525, 527, 528, 531, 
617. 
alata, 513, 504, 512. 
angusta, 507, 502, 503, 508. 
arcuata, 510. 
arguta, 506, 502, 503, 507-509, 519. 
aviculoides, 516. 
cancellata, 514, 504. 
carinata, 504. 
carrollensis, 518, 519. 
chatfieldensis, 508. 
cineinnatiensis, 513, 504. 
concava, 509, 524. 
concentrica, 510, 502, 503, 507, 511. 
consimilis, 505, 
corrugata, 514. 
dicteus, 504. 
excellens, 511, 503. 
faba, 509, 523. 
gesneri, 504. 
milleri, 523. 
modiolaris, 503, 481*, 502, 505, 521. 
modioliformis, 515, 514. 
mytiloides, 508, 503, 507. 
nana, 507, 503, 508, 509. 
nasuta, 504. 
oblonga, 514, 504. 
obsoleta, 509. 
orthonota, 527. a 
oviformis, 521, 504. 
oweni, 506. 
plana, 512, 504, 
pholadiformis, 514, 504. 
primigenia, 504. 
pulchella, 514, 504. 
recta, 563, 504, 564. 
rectiformis, 527, 528. 
similis, 504, 503-506. 
subelliptica, 617, 504, 
subnasuta, 518, 504, 519. 
subparallela, 508. 
subrecta, 503. 
sulcata, 514. 
superba, 515, 504, 514. 
trentonensis, 526, 504. 
truncata, 628, 504, 512. 
valida, 521*. 
