606 
Middendorf f. 
Pag. 
Margarita cinerea ..403 
Groenlandica .397 
helicina .397 
incarnala ..400 
sordida .403 
striaia. .402 
sulcata .401 
undulata .400 
vulgaris .397 
Mentula ( Mya ) marina. ... ... 585 
Mesodesma donacilla .580 
elliptica .580 
Lamarckii .580 
Mitra ( Terebra ) Linnei .510 
semistriata .510 
Modiola barbata .537 
( Crenella ) cicercula .530 
cultellus .537 
discors .. 531, 534 
discrepans . 532, 534 
Gibbsii . 537 
grandis .537 
laevigata . 532, 534 
laevis .534 
modiolus .537 
nexa .532 
nigra . 533, 534 
papuana .537 
vernicosa .536 
Modiolaria, vergl. Modiola. 
Monodacna vergl. Cardium. 
Monodonta c analiculata . 411 
Lessonii .405 
Olivieri .. 411 
Murex ( Trophon ) borealis . 452 
( Tritonium ) carinalus .465 
cingulifei us . . . 450 
( Trophon ) clalhratus .454 
( Fusus ) corneus . 473 
( Tritonium ) despectus .... 464, 465 
Murex erinaceus ...... 
ferrugineus .. 
lactuca . 
monodon . 
( Trophon ) multicostatus 
( Terebra ) scriptus. . . 
Irunculus . 
Mva arenaria . 
( Pholadomyd ) edentula 
priapus . 
truncata .. 
Mvtilus abbreviatus ... 
achatinus . 
borealis . 
edulis ....... 
galloprovincialis . . . 
incurvatus . 
latus . 
lineatus . 
minimus . 
notalus . 
Pag. 
. u 450 
. . 449 
. . 449 
. . 448 
. 454 
. . 510 
. . 451 
. . 586 
. . 591 
. . 585 
. . 585 
540, 542 
. . 540 
. . 541 
540, 541 
. . 540 
. . 542 
. . 539 
. . 540 
. . 538 
. . 542 
pellucidus .542 
pes pecoris .540 
retusus ..542 
se.aber .539 
subsaxatilis . . 542 
JNassa, vergl. Tritonium reticulatum . . 504 
Tritonium Ascanias . . . 506 
und Tritonium neriteum. . , 507 
JNatica aperta . . 419 
borealis .. . . . 421 
canaliculata . ....416 
clausa .419 
consolidata .419 
cornea . 416 
flava .422 
Gouldii .421 
Groenlandica .422 
helicoides .416 
herculea .424 
lactea .422 
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