684 
Proceedings of Royal Society of Edinburgh. 
[sess. 
PAGE 
Coscino discus — 
biangulatus, Sch., 548, 550, 614 
?bifrons, Cstr. , . . . 600 
biharensis, Pant., . . 590, 614 
bioculatus, Grun,, . 483, 484, 624 
bioculatus, var. exigua, Grun. , 484 
bipartitus, sp. n., . .472, 626 
biplicatus, Grun., . 484, 580, 622 
biradiatus, Grev., . . 569, 622 
bisculptus, sp. n., . . 471, 609 
bisinuatus, Sch., . . 552, 614 
blandus, Sch., . . 472, 624 
boliviensis, Grun., . 541, 622 
boliviensis, Grun., pro parte, 541 
boliviensis, var. spinulosa, 
Grun., 541 
borealis, Bail. , 516, 550, 558, 
559, 624 
borealis, Ehrb., . . 516, 559 
bullatus, Janisch, . . . 462 
bulliens, Sch., 519, 525, 550, 
614, 629, 634 
calif ornicus, O’ Me., . .543 
capensis, Grun., .484, 581, 624 
caraibicus, Tru. and Witt, . 507 
carconensis, .... 606 
caspius, Ehrb., . . 514, 515 
? centralis, Ehrb., . . .555 
centralis, Ehrb. , pro parte, 
555, 560 
centralis emend., . 532, 552, 
555, 556, 572, 613 
centralis, O’Me., . . . 555 
centralis, Sch., . . 551, 555 
centralis, Schulze, . . . 532 
centralis, Weisse, . . .555 
centralis, var. micraster, 
Grun., 555 
centralis forma minor , Van 
Heurck, . . . 555, 556 
centralis, var. Cstr., . . 555 
centranthus, Ehrb., . .606 
cervinus, Ralfs, . . 593, 611 
Challenged, Janisch, . .608 
cinctus, Kutz. , 452, 453, 454, 611 
cingulatus, Ehrb., . . 539, 623 
circumdatus, Sch., 466, 481, 626 
clivosus, Pant., . . 595, 625 
clivosus, var. latefasciata, 
Grun., 595 
?clypeus, Ehrb., . . . 490 
cocconeiformis, Sch., . 599, 609 
cocconeiformis, var. brevior, 
nov., 599 
cocconeiformis, var. latior, 
nov. , 599 
cocconeiformis, var. tenuior, 
nov., . 600 
cocconeiformis, var. Sell., . 600 
commutatus, Grun., . . 533 
PAGE 
Coscinodiscus — 
complexus, Stodder, . . 608 
compositus, sp. n., . 518, 614 
comptus, Cstr., . . 583, 623 
concavus, Ehrb., . . 461, 470 
concavus, Greg., . 469, 483, 626 
concavus, Greg., var. Sch., . 461 
concavus African, Elirb., . 470 
concavus, var. africanus, 
Kutz. 470 
concavus, var. Sch., . .470 
concinnus, W. Sm., 531, 532, 
545, 554, 555, 564, 617 
concinnus, var. arafurensis, 
Grun., . . . 532, 534 
concinnus, var. jonesiana, 
Rattray, . . 532, 554, 634 
concinnus, var. lcerguelensis, 
Grun. , .... 532, 533 
concinnus, var. Moseley i, 
Rattray, . . . .533 
confertus, sp. n., . 584, 611 
conformis, sp. n., . . 545, 620 
confusus, sp. n., . . 451, 621 
convexus, Sch., . . 552, 615 
convexus, var. bengalensis, 
Grun., 553 
convexus, var. diminuta, 
Grun., 553 
corolla, Sch. , . . . 530, 618 
craspedodiscus, O’Me., . 544, 
600, 601, 602 
craspedodiscus, Kutz., . 544, 600 
crassus, Bail., 513, 524, 539, 
540, 622 
crassus, var. algida, Grun., . 540 
crassus, var. gelida, Grun., . 540 
crassus, var. morsiana, Grun. , 
539, 540 
crassus, Bail., var.? Grun., . 539 
crassus, var. Sch., . . . 539 
crenulatus, Grun., . 489, 617 
cribrosus, Tru. & Witt, 536, 
587, 621 
cristatus, sp. n., . .475, 626 
cristatus, var. distans? Sch., 475 
cruciatus, Kiitz., . . . 601 
curvatulus, Grun. , 477, 486, 617 
curvatulus, var. barbadensis, 
CleveMS., . . . .489 
curvatulus, var. densius- 
striata? Sch., . . .486 
( curvatulus , var. ?) divisus, 
Grun., 500 
curvatulus, var. frigida, 
Grun., .' . . . 489 
curvatulus, var. genuina, 
Grun., .... 487 
curvatulus, var. inermis, 
Grun., 486 
