690 Proceedings of Royal Society of Edinburgh. 
[sess. 
Coscinodiscus — 
(subglobosus, var. ?) antarcticus, 
Gran., 508 
snblineatus, Gr.un. ,. . 474, 627 
subnitidus, sp. n., . . 451, 611 
subnotabilis, sp. n., . 589, 618 
subnotabilis, var. marina, 
nov., 589 
suboculatus, sp. n., . 563, 624 
subsalsus, Juh.-Dannf., 593, 618 
subtilis, Ehrb., 481, 482, 487, 
490, 491, 493, 194, 497, 
498, 500, 502, 505, 539, 
555, 604, 617 
. 538 
. 486, 495 
glacialis , 
. 498 
subtilis O’ Me. MS, 
subtilis, Sch., . 
( subtilis , . var. ?), 
Grun., .... 
subtilis, var. lineolata nov., 497 
subtilis, var. Normanii, Van 
Heurck, 500 
(subtilis, var. ?) odontophorus, 
Gran., 498 
subtilis, var. scabra, nov., . 497 
subtilis, var. siberica, Grun., 496 
subtilis, var. Sch., . . . 485 
subtilissimus, Ehrb., . . 607 
subvelatus, Gran., . . 467, 512 
superbus, Hardman MS., 458, 
459, 615 
superbus, var. moravica, 
Grun., 459 
superbus, var. nova-zealand- 
ica, Grove MS., . . .459 
suspectus, Janisch, 480, 481, 618 
symbolophorus, Grun., 492, 
493, 616 
symmetricus, Grev., 486, 490, 
491, 495, 606, 624 
symmetricus, Sch;, . .490 
symmetricus, Ivitton & Weiss- 
flog, 502 
(symmetriscus, var.) denarius, 
Sch., 505 
Szabbi, Pant., . . .591 
Szontaghii, Pant., . . . 487 
tabularis, Grun., . . 583, 621 
tenellus, Ehrb., . . . 604 
tenerrimus, Ehrb., . . 608 
tenuis, Bail., . . . .532 
tenuis, Rattray, . . 577, 619 
tenuisculptus, sp. n., . 452, 610 
theskelos, sp. n., . 565, 566, 609 
Thuinii, Cleve, . 583, 584, 623 
traducens, sp. n., . . 528, 614 
traducens, var. hispida, nov., 529 
Trinitatis, Rattray, . 593, 619 
Trocliiscos, Tru. and Witt, 
567, 619 
tuberculatus, Grev. , 482, 624 
PAGE 
Coscinodiscus — 
tuberculatus forma minor, . 482 
tuberculatus, var. Monicas, 
Grun., 482 
tuberculatus, Grev. , var. b 
Sch., . . . . .482 
tumidus, Janisch, 462, 465, 
475, 626 
tumidus, var. fasciculata, nov. 476 
turgidus, sp. n., . . 455, 612 
unibonatus, Cstr., . . . 592 
umbonatus, Greg., . 507, 565, 612 
undatus, Grun., . . 577, 625 
undulans, Rattray, . 552, 625 
undulatus, Cstr., . . .552 
undulatus, Cleve., . . 587, 621 
vacuus, sp. n., . 535, 536, 619 
variolatus , Cstr., . . . 505 
varius, Schum., . . . 604 
velatus, Ehrb., . 509, 510, 612 
velatus, Sch., .... 455 
venulosus, Cstr. , . . 457, 618 
vetustissimus, Pant., 477, 
478, 534, 617 
vetustissimus, var. curvatu- 
loides, Grove MS., . .478 
vetustissimus, var. wallichi- 
ana, Grun., . . . 534 
vicinus, Schum., . . . 514 
vigilans, A.S., . . 467, 626 
vulgaris, Schum., . . . 605 
wallichianus, Grun., . . 608 
Weissltogii, Sch., . . 565, 609 
Weyprechtii, Grun., . 552, 622 
whampoensis, Grove MS., 497, 616 
Woodwardii, Eul. , var. 
Grun., 542 
Woodwardii , Eul., . 571, 572 
Woodwardii, Sch., . . 527 
Woodwardii, Eul., var. Grun, 542 
Woodwardii, var. ? Sch., . 541 
zebuensis, Grun., M.S., . . 464 
zonulatus, sp. n., . . 469, 626 
Cosmiodiscus, Grev., . . 450, 605 
armatus, Sell., . . .575 
barbadensis, .... 590 
carconenis, . . . .606 
elegans, Grev., . . .576 
imperfectus, Grun., . . 604 
normanianus, Grev., . .575 
normaniamus, Grove and 
Sturt (not Grev)., . .576 
obliquus, Grev. MS., . .575 
tenuis , Grun., . . . .577 
COSTAT-E, 531 
Craspedodiscus, . 601, 629, 634, 671 
actinochilus, Ehrb., . .574 
coronatus, Brightw., . . 630 
Cosinodiscus, Ehrb., . . 600 
elegans, Ehrb., . . 600, 601 
