1888-89.] Mr John Rattray on the Genus Coscinodiscus. 685 
PAGE 
Coscinodiscus — 
curvatulus, var. kariana, Cleve 
and Grun., .... 488 
curvatulus, var. latius-striata, 
Sch 487 
curvatulus, var. minor, 
Gran., . . . .487, 488 
curvatulus , var. Normanii , 
Cleve, 500 
curvatulus, var. recta, nov., . 488 
curvatulus, var. subocellata, 
Grun., .... 487, 488 
curvatulus, var. Cleve MS., . 489 
curvatulus, var. Cstr., . . 488 
cycloteres, Cstr., . . 567, 573. 
debilis, sp. n., . . 529, 614 
decipiens , Grun., . . 509, 519 
decipiens, Grun., . 464, 465, 627 
decrescens, Cstr., . . .460 
decresens, Grun., . . 525, 612 
decrescens, Sch 526 
denarius, Sch., . 495, 504, 617 
denarius, var. variolata, , 505 
denarius, var. Sch. , . . 505 
densus, Grove & SturtMS. , 592, 618 
denticulatus, Cstr . , . 531, 613 
depressus, Greg. MS., . 595, 613 
detritus, Sch., . . . 537 
devius, Sch., . . . .517 
dimorphus, Cstr., 450, 583, 611 
diophthalmus, Cstr., . . 523 
diophthalmus, var. mono- 
phthalma, Cstr., . . 524 
diorama, Sch., . . 542, 603 
diplostictus, Grun., . 579, 620 
disciger, Ehrb., . . 593, 619 
discoplea, Ehrb., . . . 606 
diversus, Grun., . 507, 513, 615 
diversus, var. completa, . 508 
divisus, Grun., . . 499, 624 
divisus, var. arcuata, Grun., 500 
doljensis, Pant., . . 503, 618 
dubiosus, Grun. MS., 529, 
589, 594, 597, 613 
dubiosus, var. curvans, nov., 530 
dubius, sp. n., . . 538, 623 
PAGE 
Coscinodiscus — 
duriusculus, sp. n ., . 566, 615 
ebulliens, var. Sch., . . 519 
echinatus, sp. n., . . 491, 616 
egregius, sp. n., . . 518, 613 
Ehrenbergii, O’Me., . . 473 
elegans, Grev., 573, 585, 586, 621 
elegans, Grev., var. parvi- 
punctata, Tru. & Witt, . 585 
elegans, var. spinifera, Grove 
and Sturt, .... 586 
elegantulus, Grev., . 569, 612 
ellipticus, Grun., . . 538, 610 
elongatus, Grun., . . 584, 610 
entoleion, Grun., . . 544, 623 
epiphanes, sp. n., , . 526, 612 
evadens, sp. n., . . 577, 615 
evadens, var. parvula, Sch., 577 
exasperans, sp. n., . . 450, 611 
excavatus, Grev., 523, 559, 
decrescens, 
var. 
irregularis, 
excavatus, 
var. biocellata, 
Grun., . 
525 
Grun., . 
._ . . 524 
decrescens, 
var. 
polaris, 
excavatus, 
var. deliquescens, 
Grun., . 
526 
nov. , 
. 524 
decrescens, 
var. 
repleta, 
excavatus, 
var. genuina, 
Grun., . 
526 
Grun., . 
. 523, 524, 598 
decrescens, 
var. 
valida, 
excavatus, 
var. quadriocel- 
Grun., . 
526 
lata, Grun., . 523, 524, 598 
decrescens, 
var. 
venusta, 
excavatus, 
var. semilunaris, 
Grun., . 
525 
Grun., . 
. 524, 562 
decrescens, 
var-., Grun., 
526 
excentricus 
, Ehrb., 461, 464, 
decussatus, 
Grove 
and Sturt 
465, 
471, 474, 481, 493, 627 
MS., . 
. 579, 
622 
(i excentricus , var. ?) antiquus, 
delawarensis, Gh'un., 
606 
Grun., . 
. 461 
excentncus, var. decipiens, 
Grun., 464 
excentricus, var. hyalina, nov. 464 
excentricus, var. micropora, 
Grun., 463 
extricus, var. perpusilla, 
Grun., 463 
excentricus, var. punctifera, 
Grun., 464 
(i excentricus , var.?) subline- 
atus, Grun., . . . 474 
excentricus, var. zebuensis 
nov., 464 
exiguus, sp. n., . . 578, 621 
exiguus, var. sequalis, nov., . 578 
extravagans, Sch., 
exutus, sp. n., 
fallax, Schum., 
fasciatus, Ehrb., 
fasciculatus, O' Me., 
fasciculatus, Sch., . 
Febigerii, H.L. Sm. 
fenestratus, Ehrb., 
506, 624 
529, 615 
. 515 
. 607 
491, 500, 624 
. 500 
. 608 
. 607 
fimbriatus, Ehrb., 528, 545, 
553, 554, 572, 614 
