626 L. H. GOUGH. 



e. In the development of the lungs, heart, alimentary 

 canal, and coxal gland. 



(2) That of Solpugids and Pseudo-scorpions : 



In the development of the lateral organ. 



(3) That of Scorpions : 



a. In the development of the central nervous system. 

 h. In the presence of an accessory brain. 



c. In the development of the median and lateral eyes. 



d. In the development of the lungs, heart, coxal 



gland, and parts of the alimentary canal and 



Malpighian tubes. 

 The mode of development of several of the organs is the 

 same in Spiders as in Scorpions, — for example, heart, lungs, 

 etc. 



BiBLIOGKAPHY. 



1. Adensamer. — "Die Coxaldriise von Thelyphonus caudatus," 



' Zoolog. Anzeiger,' xviii. 



2. Bernard. — " Terminal Organ of the Pedipalpi of Galeodes, and the 



Discovery of an Homologous Organ on the Pedipalp of Phrymis," 

 'Ann. Nat, Hist.,' xii. 



3. Bernard. — " On the Spinning-glands of Piirynus, with an account of 



the so-called Penis, and of the Morphology of the Operculum," 'J. 

 Linn. Soc.,' xxv. 



4. Bernard. — "The Comparative Morphology of the Galeodidse," 'J.Linn. 



Soc.,' xxv. 



5. Bertkau, Zu Lebidinsky. — ' Die Entwicklung der Coxaldriise von 



Phalangium," ' Zool. Anz.,' 1892. 



6. Brauer. — " Beitrage zur Kenntniss der Entwickluugsgeschichte des 



Scorpions. I," 'Zeitschr. f. wiss. Zool.,' 1894. 



7. Brauer. — "Beitrage zur Kenntniss der Entwicklungsgeschichte des 



Scorpions. II," ' Zeitschr. f. wiss. Zool.,' 1896. 



8. Bruce. — " Observations on the Embryology of Spiders," ' Am. Nat.,' xx. 



9. Bruce. — ' Nervous -System of Insects and Spiders, with Remarks on 



Phrynus," ' Johns Hopkins Univ. C 

 10. Croneberg. — "Ueber ein Entwicklungsstadium des Galeodes," 'Zool. 

 Anz,,' X. 



