ii90 INDEX TO MOLLUSCA. 
Page 
Page 
Genus, 
Galathea, . 
. 362 
Genus, 
Pectunculus, . . . . 
373 
Scrobicularia, 
. 363 
Nuculsj, . . . . 
373 
P’amily, 
Mactridse, 
. 363 
Family, 
Pinnad®, . . . . 
373 
Genus, 
Gnathodon, 
. 363 
Pinna squamosa (the Scaly Pinna), 
374 
Family, 
Paphiidm, 
. 363 
Family, 
Aviculid® (the Wing-shells), 
373 
Genus, 
Glossus (the Ilearl-cncHe), 
. 363 
Genus, 
Margaritiphora (the Pearl-oyster), 
374 
P'amily, 
ChamidEe, . , 
. 364 
Family, 
Spondylid®, . . . . 
375 
Oh am a lazarus. 
. 364 
Genus, 
Spondylus (Thorny Oyster), . 
375 
Family, 
Anatinidae, 
. 364 
Family, 
Pectenid® (the Scallops), . . 
375 
Genus, 
Anatina (the Lantern- shell), 
. 364 
Limad® (the File-shells), 
376 
Tliracia, 
. 364 
Ostreid®, . . . . 
377 
Chamostrea, 
. 364 
Genus, 
Ostrea, . . . . 
377 
Family, 
Mutelidm, . . 
. 364 
Genus, 
Mutela, 
. 364 
H 
Fleiodon, 
. 364 
a 
(( 
Leila, 
Castalia, 
. 364 
. 364 
Class V. — BRACHIOPODA (Brachiopods), 
378 
u 
Family, 
Styria, 
Cardiid®, 
364 
. 364 
.Rfi.o 
Sob- CLASS 
Order 
I., Ancylopoda, 
I., Ancylobrachia, 
379 
379 
Modinlareida}, 
Dreissenidse, 
.^6.6 
Family, 
Terebratulid® (the Lamp-shells), 
379 
. 365 
Tribe 
I., Terebratulanina, 
380 
Family, 
Genus, 
Order 
Dreissena {Pohjmorpha), 
Tridacnidse, 
Ti’idacna, 
Hippopus, 
II., Pholadacea, 
. 365 
. 366 
. 366 
. 366 
. 369 
Order 
P' amily. 
Genus, 
11., Magasina, . . . . 
11., Cryptobrachia, 
Thecideid®, 
Argiope, 
Thecidea, . . . . 
380 
380 
380 
380 
380 
Family, 
Genus, 
Pholadidm, 
Pholadina, 
Xylopliaga, 
. 366 
. 366 
. 367 
JifiV 
Sub-class 
Order 
Family, 
Genus, 
II., Helictopoda, . . . . 
I., Sclerobrachia, 
Rhynchonellid® . . , 
Rhynohonella, 
380 
380 
380 
380 
Family, 
Genus, 
ii 
(( 
Gastrochmnida;, 
Aspergillum, 
Clavagella, 
Fistulana, 
. 368 
. 368 
. 368 
. 368 
Order 
Family, 
ii 
II., Sarcobraebia, . 
Craniid®, . . . . 
Discinid®, . ' . 
Lingulid®, 
380 
380 
380 
381 
<( 
Gastrochsena, . 
. 368 
Family, 
Saxicavidae, 
. 368 
Genus, 
Family, 
Saxicava, 
. 368 
Solenidse, 
. 369 
Class VI. — TUNICATA (the Tunicaries), 
381 
Genus, 
Glycimeris, 
. 369 
Family, 
Myad®, 
. 369 
Order, • 
Dichitonida, . . . . 
382 
Genus, 
‘ Mya, 
. 
Family, 
A scidiid® (S'iniple A sefrf/ares), . 
382 
Sub-class II., Asiphonophora, 
. 370 
Genus, 
Aseidia (Sea Squirt), . 
383 
Order 
I., Lasiacea, . . . 
. 370 
“ 
Cynthia, . . . . 
383 
F' amily. 
Solenomyid®, . 
. 370 
U 
Boltenia, . . . . 
383 
Genus, 
Solenomya, 
. 370 
Family, 
Clavellinid® (Social Ascidians), 
383 
Order 
II., Unionacea, 
. 370 
Genus, 
Clavellina, . . . , 
383 
Family, 
Lucinid®, 
. 370 
Perophora, . . . , 
383 
Astartid®, 
. 370 
Family, 
Botryllid® (Compound Ascidians), 
583 
u 
Carditid®, 
. 371 
Sub- family 
I., Boti'yllina, 
384 
ii 
Crassatellid®, 
. 371 
Genus, 
Botryllus, . . . . 
384 
ii 
Unionid®, 
. 371 
Sub-family II., Polyclinina, . . . . 
384 
Genus, 
Unio, 
. 371 
Genus, 
Polyolynum, . . . . 
384 
(( 
Damaris, 
. 371 
Synoicum, . . . . 
384 
ii 
Baibala, 
Anodonta, 
. 371 
“ 
Sigillina, . . . . 
384 
ti 
. 371 
Sub-family 
[II., Didemnin®, . . , . 
384 
Family, 
Etheriid®, 
.. 372 
Genus, 
Didemnium, . , . . 
384 
Genus, 
Family, 
Etheria, 
. 372 
Distomus, . . . . 
Pyrosomatid®, . 
384 
Mytilid®, 
. 372 
Family, 
385 
Genus, 
Mytilus (the Sea Mussel), 
. 372 
Genus, 
Pyrosoma, . . . . 
385 
“ 
Modiola (Horse-mussel), 
. 372 
Order, 
P’amily, 
Monochitonida, . 
386 
u 
Lithodomus, 
. 372 
Salpid®, . . . . 
386 
u 
Lithodomus Dactylus, . 
. 373 
Genus, 
Salpa, . . . . 
386 
Order 
III., Pectinacea, 
. 373 
Doliolum, . . . . 
386 
Family, 
Trigoniid®, 
. 373 
Family, 
Pelonaiad®, . . . . 
387 
Arcad®, 
. 373 
Genus, 
Pelonaia, . . . . 
387 
Genus, 
Area No® (the Typical Arks), . 
. 373 
i< 
Bryozoa, . . . . 
387 
