GYMNOMYXA. 
Prot. 73 
t Staurosphcera insularis , n. sp., p. 502, pi. 1, fig. 14, Cretaceous, Carpathos, 
diagnosed, Yinassa (400); S. mioccenica , n. sp., p. 569, pi. 1, fig. 17, 
Miocene, Italy, diagnosed, Yinassa (399). 
f>S 'tigmosphcera cruxequites , n. sp., p. 500, pi. 1, fig. 25, Cretaceous, Car- 
pathos, diagnosed, Yinassa (400). 
+Stylodictya biporata, p. 576, pi. 2, fig. 5, S. elliptica , p. 576, pi. 1, fig. 47, 
Miocene, Italy, diagnosed, Yinassa (399) ; >S'. haeckelii , occurrence, 
Chalk, Teutoburger Forest, Elbert (99) pp. 150 & 151. 
iStylosphcera fornasinii, n. sp., p. 569, pi. 1, fig. 15, Miocene, Italy, 
diagnosed, Yinassa (399). 
Thalassiosolen, n. g., atlanticus , n. sp., plankton, Faroe Channel, described, 
WOLFENDEN (413). 
Thalassolampe. This genus held to be unnecessary, and the sp. marga- 
■rodes placed in the genus Physematium, Brandt (41). 
Thalassopila. Diagnosis of the genus and spp., p. 66, T. laciniata , n. sp., 
p. 66, T. pustulosa , n. sp., p. 66, diagnosis and occurrence, Brandt (41). 
Thalassophysa. Diagnosis of the genus and its chief spp., p. 64, T. 
guttidosct , n. sp., p. 65, T. hirsuta , n. sp., p. 65, T. pelagica , p. 64, 
pi. 2, figg. 1, 4, 5, 10, 11 & 13 and pi. 3, figg. 7-11, 13, T. sanguinolenta , 
p. 64, pi. 2, figg. 3, 9, 12, T. spiculosa, n. sp., p. 65, pi. 2, figg. 2, 6-8, 
description and occurrence, Brandt (41). 
t Thecospiicera grecoi , n. sp., p. 568, pi. 1, fig. 8, T. magneporata , n. sp., 
p. 567, pi. 1, fig. 7, Miocene, Italy, diagnosed, Yinassa (399). 
Triastrum , n. g., aurivillii , n. sp. (near Haeckel’s genera Dicranastrum, 
Pentophicistrum and Myelastrum), occurrence, plankton, Malay Archipel. 
and diagnosis, Cleve (65) pp. 12 & 53, pi. 8, figg. 16 & 17. 
kTripodictya hellenica, n. sp., p. 503, pi. 1, fig. 29, Cretaceous, Carpathos, 
diagnosed, Yinassa (400). 
f Xyphodictya uniserialis, n. sp., p. 576, pi. 2, fig. 2, Miocene, Italy, 
diagnosed, Yinassa (399). 
\Xiphostylus barbeyi , n. sp., p. 501, pi. 1, fig. 11, X. de stefanii , n. sp., 
p. 501, pi. 1, fig. 13, Cretaceous, Carpathos, diagnosed, Vinassa (400). 
t Xyphosphcera apenninica , n. sp., p. 569, pi. 1, fig. 14, X. mutinensis, n. sp., 
p. 569, pi. 1, fig. 13, Miocene, Italy, diagnosed, Yinassa (399). 
(b) Acantharia or Actipylaria:— 
Acanthometridce , reproduction of, Porta (294) pp. 811-822. 
Acanthometra , months of occurrence in plankton from Gulf of Trieste, 
Steuer (380) pi. 1; A. cuspidata , pi. i, fig. 16, & pi. ii, fig. 5, A. 
elastica, pi. i, figg. 1, 1 a, 3 & 4, and pi. ii, figg. 1 & 2, reproduction, 
Porta (294). 
Acanthometra and Acanthophracta , nature of skeleton and hydrostatic 
apparatus in, Schewiakoff (338) p. 686. 
Acanthostauruspurpurascens, reproduction of, Porta (294) pi. i, fig. 5. 
Amphilonche elongata , reproduction of, Porta (294) pi. i, fig. 46. 
Xiphicantha quadridentata , reproduction of, Porta (294) pi. i, fig. 4c. 
(c) Monopylaria:— 
f Acerahedrina. n. g., hirta. n. sp., p. 581, pi. 2, fig. 32, Miocene, Italy, 
diagnosed, Yinassa (399). 
t Acerocanium, n. g., qlobosum , n. sp., p. 581, pi. 2, fig. 28, Miocene, Italy, 
diagnosed, Yinassa (399). 
t Archicapsa lagena, n. sp., p. 505, pi. 1, fig. 18, Cretaceous, Carpathos, 
diagnosed, Yinassa (400). 
\Artocapsa diinikowskyi , n. sp., p. 591, pi. 3, fig. 51, Miocene, Italy, 
diagnosed, Yinassa (399). 
t Artostrobus elongatus , n. sp., p. 586, pi. 3, fig. 20, A. zitteli , n. sp., p. 586, 
pi. 3, fig. 19, Miocene, Italy, diagnosed, Yinassa (399). 
