4 Goal 
CCELENTEUATA. 
28. Holm, G. Bidrag till Kanuedoraen om Scandiuavieus Graptoliter. 
CEfv. Ak. Forh. xxxviii. No. 4, pp. 71-83. 
1 new genus, Pterograptus. 
30. JuLLiEN, J. Description d’une espece nouvelle du genre FileUum. 
Bull. Soc. Z. Fr. v. pp. 291 & 292. 
31. Kleinenuerg, N. Ueber die Entstehung der Eier bei Eudendrium. 
Z. wiss. Zool. XXXV. pp. 326-332. 
The author insists on the ectodermal origin of the ova in Eudendrium^ 
and suggests the possibility of ectodermal cells wandering and appearing 
to lie in the endoderm. 
34. Krukenberg, C. F. W. Zur Kritik der Schriften ueber eine so- 
genannte intracellulare Verdauung bei Goelenteraten. Vergl. 
physiol. Stud. Adria, pp. 139-142. 
Referring to his earlier researches upon the subject. 
35. — — . Ueber den Einfluss der Kohlensaure auf die Muskeln der 
Actinien und Medusen. X. c. pp. 172-174. 
36. Lankester, E. Ray. On the Intro-cellular Digestion and Endo- 
derm of Limnocodium. Q. J. Micr. Sci. xxi. pp. 119-131, 3 pis. 
37. . On Young Stages of Limnocodium and Geryonia. L. c. pp. 
194-201, 1 pi. 
The few stages found present a striking resemblance to certain stages 
of Geryonia, and show that the sub-umbrellar cavity develops a closed sac 
lined with ectoderm. Haeckel’s observations, which were dismissed by 
Fol and Metschnikoff, show that the same thing occurs in Geryonia. 
This tends to show that the sub-umbral space corresponds with the so- 
called stomach of Ctenophora. 
38. Lapworth, C. On the Cladophora, Hopk., or Dendroid Graptolites, 
collected by Prof. H. Keeping in the Llandovery Rocks of Mid- 
Wales. J. Geol. Soc. xxxvii. pp. 171-177. 
Although allied to the well-known dendroid species of the Quebec and 
Arenig formation, the forms of Cladoplwra collected by Prof. Keeping 
differ in minor features, and form a type almost new to British palaeon- 
tology. The genera represented are Dictyonema, Hall, Calyptograptus, 
Spencer, Acanthograpfus, Spencer, and Odontocaulis, Lapworth. Dictyo- 
nema is a well-known British genus ; the remainder are new to British 
palaeontology. Calyptograptus and Acanthograptus have been already 
briefly noticed from American strata by Mr. Spencer, but have not 
hitherto been figured. Odontocaulis is a new genus of a peculiar type. 
39. MacKendrick, J. G. Colouring Matter of Medusae, in J, Anat. 
Phys. XV. pp. 261-264. 
The colouring matter exists in a granular form in the protoplasm, and 
it is only when the protoplasm has become acid and is disintegrating 
that the colouring matter diffuses out. Spectroscopic examination in the 
case of Chrysaora, gives no very definite result. With weak solutions, 
the violet end of the spectrum is cut off, and, on concentrating, the rest 
