THE FUNCTION OF NBTTLEOELLS. 399 



Papers referred to. 



1. F. E. ScHULZE. — "Ueber Syncoryne Sarsii, Loven, und die zuge- 



borige Meduse Sarsia tubulosa." 



2. 0. Hamann. — " Der Organismus der Hydroidpolypen." ' Jenaische 



^eitsclirift fur Naturwissenscbaft,' 18S1, Band 15. "Ueber Nessel- 

 kapselzellen," 1. c. 



3. KoROTNEFF. — " Ueber Siphonopboreu." Mittbeilungen aus der zoolo- 



gisclien Station in Neapel, 1884. 



4. R. V. Lendenfeld.^" Ueber Coelenteraten der Siidsee. iii., Ueber 



Webrtbiere und Nesselzellen," ' Zeitschrift fiir wissenschaftliche Zoo- 

 logie,' 1883, Band 38, p. 366. 



5. C. JiCKELi. — " Ueber den Bau der Hydroidpolypen," ' Morphologiscbes 



Jabrbucb,' 1882. 



6. C. Chun. — " Die Natur und Wirkungsweise der Nesselzellen bei Coe- 



lenteraten," ' Zoologiscber Anzeiger,' Band 4, p. 646. 



7. R. V. Lendenfeld. — "Nais cordigera, Les.," 'Zeitschrift fiir wis- 



senscbaftlicbe Zoologie,' Band 41, p, 673. 



EXPLANATION OF PLATE XXX, fig. 4, 



Illustrating R. von Lendenfeld's Paper on "The Functions of 

 Nettlecells." 



EiG. 4.— Scbematic representation of cnidoblast, &c. — a. Mesodermal sup- 

 porting lamella, b. Peduncle (Hamann's) of cnidoblast. c. Ordinary cylin- 

 drical epitbelium cells, d. Tbeir nuclei, e. Longitudinal striated muscles. 

 f. Subepitbelial muscle-cells, g. Tbeir nuclei, h. Subepithelial ganglion cell. 

 i. Tangential nerve-fibre, k. Nucleus of tbe ganglion cell. I. Epithelial sen- 

 sitive cell. ni. Its nucleus, n. Palpocil (Wright), o. Cilia of the ordinary 

 epithelium cells, p. Nerve connecting ganglion cell with cnidoblast. q. Pro- 

 toplasmatic contractile mantle of cnidoblast. r. Nucleus of cnidoblast. s. 

 Nematocyst. t. Its aperture, u. Cuidocil (Scbulze). v. Thread coiled up 

 inside tbe cnidoblast. 



