THE ANATOMY AND DEVELOPMENT OF PERIPATUS NOVAE-BRIT ANNIAE. 41 



APPENDIX. 



1. References to the following authors have been added during the correction of the 

 proofs : — E. L. Bouvier p. 3, L. Camerano p. 3, R. Heymons p. 33. 



2. The occurrence of histolytic changes in the gastral epithelium of Peripatus, as described 

 in the foregoing pages, is interesting in comparison with analogous phenomena which have 

 been observed among the Myriapoda and Insecta as well as in other groups. I have found 

 the .use of the term gastrolysis to be convenient in this connection, as sarcolysis has been 

 used in describing the fatty degeneration of the muscles of Insects. [C. de Bruyne. Recherches 

 au sujet de l'intervention de la Phagocytose dans le developpement des Invertebres. Archives 

 de Biol. xv. 1898, p. 181.] 



3. Gastrolysis has been observed in the mid-gut of the scolopendroid genus Cryptops 

 by Balbiani during the winter season. The epithelial cells had, at almost all points, detached 

 themselves from the tunic of the gut and become transformed into an amorphous mass of 

 granulations and refringent globules, which filled the cavity of the gut. The muscular tunic 

 of the gut also underwent degeneration. " Ce processus de regression du tube digestif des 

 Cryptops pendant la saison froide est a rapprocher des observations de Semper sur la chute 

 de l'epithelium des Gasteropodes pulmones pendant l'hibernation, et de celles de Sommer sur 

 la mue de l'epithelium de l'intestin chez le Macrotoma plumbea [a Podurid]. On peut lui 

 comparer aussi les phenomenes decrits par Kowalevsky touchant la destruction de l'appareil 

 digestif chez les larves des Muscides au moment de leur transformation en pupe." [E. G. 

 Balbiani, Etudes sur le tube digestif des Cryptops. Archives de Zool. exper. (2) T. viii. 

 1890, p. 72.] 



4. In the case of Peripatus, it is to be noted that during the gastrolysis, as described 

 in the text, the tunic of the gut remains whole and intact. 



5. Compare also the desquamative catarrh described in the stomach, intestine and pyloric 

 appendages of Salmonidae by Gulland. [G. Lovell Gulland. The minute structure of the 

 digestive tract of the Salmon, and the changes which occur in it in fresh water. Anat. 

 Anz. xiv. 1898, p. 441.] 



6. Further reference may be made to the paper by C. Rengel, Ueber die Veranderungen 

 des Darmepithels bei Tenebrio molitor wahrend der Metamorphose. Z. f. w. Z. Bd. 62, 1897, 

 p. 1. 



7. On the subject of eosinophile granulations and their relation to fat and yolk, see 

 N. BogdanofF, Ueber das Vorkommen und die Bedeutung der eosinophilen Granulationen. 

 Biol. C. B. xvin. 1898, p. 26. 



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