NEW FORMS OF MARINE DIATOMACER. 
50. Eupodiscus subtilis, n. sp., Ralfs. 
51, Campylodiscus centralis, n. sp. 
52. 
57. 235 
58. on 
59. aaa 
60. oer 
61. 
62 & 620 (2) 
Ralfsii (?) Sm. 
— 54&546,... 
55. 
539 
. 38. Denticula fulva, n. sp., F.V. 38 6; do. S.V. |Fig. 44, Melosira (?) or Coscinodiseus (?) qu. (2) sp. (?) 
Stel Mae marina, n. sp., 39 b; do. 8.V. nl. Sp. 
40. Diadesmis Q HE F. V., 406; do.} — 45. Coscinodiscus nitidus, n. sp. 
— 46. punctulatus. n. sp. 
41. Meridion ae marinum, u.sp.,F.V., 416; do|— 47. concayus, Ebr. 
S.V. — 48. he umbonatus, n. sp. 
42. Pyxidicula cruciata, Ehr. All the above are magnified 400 diameters. 
43. Orthosira angulata, n.sp., F.V., 436; do. F.V. 
EXPLANATION OF PLATE XI. 
49. Coscinodiscus centralis, Ehr. Fig. 53. Campylodiscus angularis, n. sp. 
eximius, 0. sp. 
limbatus, Bréb. 
All the above are magnified 400 diameters. 
EXPLANATION OF PLATE XII. 
Fig. 56. Amphiprora a n. sp., F.V., 36 6; do. 
es n. sp., F.V. 
elegans, Sm. 8.V., 58 b; do. F.V. 
lepidoptera, n. sp., F.V., 59 6; 
do., S.V., 59 ¢; do. peculiar 
view. 
obtusa, n. sp., F.V. 
maxima, Greg., F.V.,616; do. 
S.v. 
complexa, n. sp., F.V. entire; 
62¢;do. half frustule, 62 d|— 74,746, & 
and 62 ¢; do. detached seg- 
ments. 
63. Amphora turgida, n. sp. 
65. 
— 6. .. 
Giese. 
— 68 & 68b, 
Paes 
rere 
74, 
Fig. 64, Amphora nana, n. sp. 
macilenta, n. sp. 
angusta, 0. sp. 
binodis, n. sp. 
yentricosa, n. sp. 
monilifera, n. sp. 
lineata, n. sp. 
Ergadensis, n. sp. 
levissima, 0. sp. 
pellucida, n. sp., 736; half frus- 
tule of do. 
levis, n. sp., 74 d ; Amphora, qu. ? 
a form of A. levis ? 
All the above are magnified 400 diameters. 
EXPLANATION OF PLATE XIII. 
Fig. i Amahor exigua, n. sp. 
81,815, 81 
81le, 
94, «ace 
958950, | 
dubia, n. sp. 
truncata, n. sp. 
oblonga, TL. sp. 
robusta, n. sp., 79 b and 79 c; half 
frustules. 
spectabilis, n. sp.; 806; do. var. B, 
80 ¢; do. var. y; 80d; do, view 
showing thecomplex structure of the 
species ; 80 ¢; do. detached segment. 
c, 81d, «| ...Proteus, 0. sp. 
84, Oise. 
SHE BAS 
66, =e. 
Siar 
88. ee 
89... 
90 390h-s- 
91. 
Fig. 82. Aanehers lyrata, n. sp. 
83. 
Milesiana, n. sp. 
elongata, n. sp. 
quadrata, n. sp. 
excisa, 0. sp. 
nobilis. 
Arcus, Greg. 
Grevilliana, Greg. 
fasciata, n. sp. 
complexa, n. sp. 
All the above are magnified 400 diameters. 
EXPLANATION OF PLATE XIV. 
. 93. Amphora acuta, n. sp., detached segment; 
936; do. pack of similar seg- 
ments. 
crassa, n. sp, 94 b, 94 ¢, and 94d; 
do. detached segments. 
pusilla, n. sp., simple and complex 
views. 
Fig. 96, 96 b, 
96¢,& 
96 d, 
Amphora granulata, n. sp., simple and 
complex views of two 
frusfules; 96 f, detached 
segment; 96 ¢; form 
qu? allied to A granu- 
lata ? 
