18 Mch. 
XIV. ECHINODERMA. 
(5) Blood of Echinus esculentus and Slrongylocentrotus lioidus ; 
Cattaneo (19) p. 31.— Nucleoli in cells of Echinoidea ; Haecker (40). 
(d) ASTEllOIDEA : — (1) General anatomy and classification, with 
special reference to fossils ; Sturtz (115) pp. 32-86.— General account 
and Morphology of External Characters, Integument and its Skeleton, 
Orientation ; Ludwig (71). 
(2) Skeleton and tegument described in bearings on Classification 
(pp. 5-26) in Brisingidce (pp. 46-60) ; Perrier (92). — Dermal ossicles 
defined under terms paxillai , spinopaxillce, parapaxillce , protopaxillcc , and 
pseudopaxillce ; Yerrill (125) p. 267. — Calycinal system undecipherable 
in young Culcita ; Bell (7) p. 404.— Internal skeleton of Pararchaster 
folini ; Perrier (92) p. 262. 
(e) OPIIIUROIDEA : — (1) General anatomy and classification, with 
special reference to fossils ; Sturtz (115) pp. 13-32. 
(2) Skeleton of A atrophy ton arborescens ; Capria (18). 
(4) Digestive organs of Aslrophy ton arborescens ; Capria (18). 
(5) Generative organs of Asti'ophyton arborescens ; Capria (18). 
(f) CRINOIDEA :— (1) Skeleton,— Tegmen and anal tube of 
Eucrinus ; Jaekel (46 & 47). — Relations of cup-plates ; Jaekel (44) 
p. 106. — Infrabasalia in Pentacrinus from Bathonian ; Loriol (65) p. 494. 
■ — Central cup-plate of Uintacrinus ; Williston (128). 
Arms and ambulacra ; Jaekel (44) p. 104. — Remarkable arrangement 
of syzygies in Antedon bassett-smithi and an Actinometra ; Bell (7) 
pp. 399 & 402. — Arm-characters of Taxocrinus concavus \ Rowley (102) 
p. 153. — Arms of Uintacrinus ; Williston (128). — Pinnulae contrasted 
with armlets ; Jaekel (44) p. 112. 
Bases or roots, porous structure and formation ; Miller & Gurley 
(81) p. 31. 
Ambulacral grooves of Grinoulca , primitive for Echinodenna ; 
Lang (58). 
Pores between arms in Dolatocrinus ; Miller A Gurley (81) p. 30. 
— Pores in cup of Corymbocrinus ; Jaekel (44) p. 106. — Madreporite ; 
Jaekel (44) p. 106. 
(g) CYSTIDEA : — Holocystis free in later stages ; Miller & Gurley 
(82) p. 5. 
Cavities in surface of test of Holocystis ; Miller & Gurley (82) 
p. 7. — Pores, function discussed ; Jaekel (44) p. 105. 
Ambulacral groove of Holocystis ; Miller & Gurley (82) p. 6. — 
Arms and ambulacra ; Jaekel (44) pp. 104 & 105. 
(h) BLASTOIDEA : — Ambulacra and covering plates minutely 
described in Pentremites ; Steinmann (113). 
