238 Proceedings of Royal Society of Edinburgh, [may 16 , 
Appendix. 
List of Dr Griffiths’s published Papers on the Physiology of the 
Invertebrata. 
I. “ On the Extraction of Uric Acid Crystals from the Green 
Gland of Astacus fluviatilis,” Proc. Roy. Soc., vol. xxxviii. p. 187 ; 
Jour. Chem. Soc., 1885, p. 680; Science Gossip , No. 255, p. 57. 
II. “ A Peculiar Excretory Product found in the ‘ Liver ’ of 
Sepia officinalis ,” Chem. News , vol. xlviii. p. 37 ; Jour. Chem. Soc. 
[Abstracts], 1884, p. 94. 
III. “ Chemico-Physiological Investigations on the Cephalopod 
Liver, and its identity as a true Pancreas,” Proc. Roy. Soc. Edin ., 
No. 119, vol. xiii. p. 120; Chem. News , vol. li. p. 160; Chem. 
Soc. Jour., 1885, p. 829. 
IV. “ Chemico-Biological Examination of the Organs of Bojanus 
in Anodontaf Chem. News, vol. li. p. 241 ; Jour. Chem. Soc., 1885, 
p. 921 ; Manchester Guardian , May 30, 1885. 
V. “ On some Points in the Physiology of Certain Organs of the 
Alimentary Canal of Blatta periplaneta ,” Chem. News, vol. lii. 
p. 195. 
Also, since the present paper. 
VI. “On the Nephridia and ‘ Liver ’ of Patella vulgataf Proc. 
Roy. Soc., vol. xlii. p. 392. 
VII. “ On the Nephridia of Hirudo medicinalisf read before 
Royal Society of Edinburgh, July 4, 1887. 
6. The Nephridia of Lanice conchilega, Malmgren. By 
J. T. Cunningham. 
{Abstract.) 
The excretory system in this species has never been adequately 
described; it presents an extremely interesting condition from a 
morphological point of view. There are four well-developed 
nephridia in somites 6-9, inclusive. Each of these commences by 
an internal aperture or nephrostome, and consists of a bent tube 
or loop, the inner side (the side nearer the median plane) of the 
