608 BIBLIOGRAPHY. 



anterior part of the larva, became developed. The excretory organs in the 

 trunk were probably more conveniently situated than those in the head, 

 and the atrophy of the latter in the adult state was therefore brought 

 about, while the trunk organs became sufficiently enlarged to serve as the 

 sole excretory organs. 



BIBLIOGRAPHY OF THE EXCRETORY ORGANS. 

 Invertebrata. 



(512) H. Eisig. "Die Segmentalorgane d. Capitelliden. " Mitth. a. d. zool. 

 StaL z. NeapeJ, Vol. i. 1879. 



(^13) J. Fraipont. "Bechercb.es s. 1'appareil excreteur des Trematodes et d. 

 Cestoid'es." Archives dc Bioloyie, Vol. i. 1880. 



(514) B. Hatschek. "Studien iib. Eotwick. d. Anneliden." Arbeit, a. d. zool. 

 Insth. Wien, Vol. i. 187*. 



(^i=0 B. Hatschek. "Ueber Eiitwick. von Echiurus," etc. Arbeit, a. d. zool. 

 Insth. Wien, Vol. in. 1880. 



EXCRETORY ORGANS OF VERTEBRATA. 



General. 



(516) F. M. Balfour. "On the origin and history of the urinogeiiital organs of 

 Vertebrates." Journal of Ana t. and Phi/ft., Vol. x. 187G. 



(517) Max. Fiirbringer 1 . "Zur vergleicheuden Auat. u. Eutwick. d. Excretions- 

 organe d. Vertebraten." Morplwl. Jalirltuch, Vol. iv. 1878. 



(518) H. Meckel. Zur Morphol. d. Hum- u. GescJilechtswerkz. d. Wirbelthierc, 

 etc. Halle, 1848. 



(519) Job. Miiller. Bildungsffeschichte d. Geititnlien, etc. Diisseldorf, 1880. 

 (5:0) H. Ratbke. "Beobachtungen u. Betrachtungen ii. d. Entwicklung d. 



Gescblechtswerkzeuge bei den Wirbelthieren." N. Schriften d. naturf. Gexell. in 

 Dantzifi, Bd. i. 1825. 



(521) C. Semper 1 . "Das Urogenitalsystem d. Plagiostomen u. seine Bedeutuug 

 f. d. iibrigen Wirbeltbiere." Arb. a. d. zool.-zoot. Instil. Wiir/burg, Vol. n. 1875. 



(522) W. Waldeyer 1 . Ei attack u. El. Leipzig, 1870. 



Elasmobranch ii. 



(523) A. Schultz. "Zur Eutwick. d. Selachiereies." Archiv f. mikr. Anat., 

 Vol. xi. 1875. 



Vide also Semper (No. 521) and Balfour ^No. 292). 



Cyclostomata. 



(524) J. Miiller. "Untersucbungeii ii. d. Eiugeweide d. Fische." Al>}>. d. k. 

 Ak.'Wiss. Berlin, 1845. 



(525) W. Miiller. "Ueber d. Persistenz d. Urniere b. Myxine glutinosa." 

 Jeuttisehe Zeitschrift, Vol. vii. 1873. 



(^26) W. Miiller. "Ueber d. Urogeuitalsystem d. Ampbioxus u. d. Cyclostomen." 

 Jenaixche Zeitschrift, Vol. ix. 1875. 



(527) A. Schneider. lieitrfiye z. veryleich. Anat. n. Entwick. d. Wirbelthiere. 

 Berlin, 1879. 



(528) W. B. Scott. "Beitrage z. Entwick. d. Petromyzonten." Morphol. 

 Jahrbuch, Vol. vii. 1881. 



Teleostei. 



J. Hyrtl. "Das uropoetische System d. Knochenfiscbe." Dciikschr. d. /. 

 A. Akad. Wi*s. Wien, Vol. u. 1850. 



(530) A. Rosenberg. Untersuchungen iib. die Entwickluin/ d. Teleontiernicre. 

 Dorpat, 1M37. 



Vide, also Oellacber (No. 72). 



1 Tbe papers of Ftirbriuger, Semper and Waldeyer contain full references to the 

 literature of tbe Vertebrate excretory organs. 



