File:Polycystins, figures of remarkable forms &c. in the Barbados chalk deposit (chiefly collected by Dr. Davy, and noticed in a lecture delivered to the Agricultural Society of Barbados, in July, 1846) (14571525539).jpg

Identifier: polycystinsfigur00bury (find matches)
Title: Polycystins, figures of remarkable forms &c. in the Barbados chalk deposit (chiefly collected by Dr. Davy, and noticed in a lecture delivered to the Agricultural Society of Barbados, in July, 1846)
Year: 1869 (1860s)
Authors: Bury, Edward, Mrs Cooke, M. C. (Mordecai Cubitt), b. 1825
Subjects: Protozoa, Fossil Radiolaria Polycystida, Fossil
Publisher: London : W. Wheldon
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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Text Appearing Before Image:
s description. 4.—Spongolithis anchor a of Ehrenberg—A spicule. 5.—Spongolithis ramosa, Ehr. 6.—Serpent-like form—very frequent and variaOle in the Barbados deposit. 7.—Lithasteriscus reniformis. Ehr., ■■Nord and Stid Amerika Taf.VI. fig. 35. / think all these bean-like forms are wartedor rough-ened on the surface, not truly foraminated. 8.—An irregular three-lobed transparent Plate from Chimborazo, Bar-bados, analogous to fig. 6 on PL VII. Dr. Wallich says theseare parts of an organism constituting a new genus intermediatebetween Sponges and Polycystins; this plate, forming part ofthe outer siliceous skeleton, the interior being filled with freespicules. The ovals, Nos. 1 and 2, on Pi. 7, (of whicli manymore examples have since been found) are plates instead ofspicules, taking the place of an internal skeleton of a kind oforganism of which no perfect specimen has yet been found; andwhich is also iutemiediate between Sponges and Polycystins. 9.—Spongolithis aspera.
Text Appearing After Image:
SA PLATE XIX. FIQ. 1.—9.—Probably varieties of the same species of Polycystin in theBarbados deposit. They frequently assume a triangular ap-pearance, there are no wide external openings visible,—butDr. Wallich has detected small 0))enings, which he comparesto a Cats claw, at the roots of the spines. >a£x 4 t^\ ♦5*. - ;^!SC: V J:^3frr ^ ^t:^ \ ^^^■Ko f^y^^l ■^fl^ ^^^Vv^ <^HE^^^^I I^^IrH B^^i^^B B&l^oool^^ ^V^^^^^ll^^o T. ^ ^^~ ^^^^5 ^^wiJf^o^^ <^ ^^o^^K V • 4^ ^^^^^ ^■^n^^^^yi^B % / ^^^^^^^I^^^Bpj^^^^^^ O 0 .^^^^^^^^^^^^^1 # V /l4 i^- f \« * <^-^ V i Jilk ^^^KsJ^H fJfefe- ^KJ^O^O^^« ^^^^^H&o^l^^^^^H V^^^SBbj^ ^4 ^^^■^I^^He 0 0 Qo;r^H ^gKj. ^ ^*w * T**^^ ija^^ ^K^B 0 0 0 o9^ / iM^KAi 7\ ^^^mS^^a<-^^---^K^, ^^Xij^^X^jyj^l^^ I^Hwoo . \ i ^^ /, ^ .^^■MBoop^ Nr\ ^ .^- .^KFT, > \^^. W ^^^^K? ^ ^^^l ^^ 4 ■ /l \ \ ^Hk? ^ ^^^^^^1 -i^ \ *.¥ ♦2l: i ^^■■bO !-> >r f-faH^^^H <f Jfftr: ■* ^^^^^^^^^^^K^ - i. \ A ,«

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