THE EGG-CAPSULE. 



sent. In further detail, the capsules may be classified on somewhat the basis shown 

 by Table E on page 30. (Cf. this table for proportional measurements.) 



TABLE C. Egg-Capsules of Chimceroids. 



*Referenceis made in the present paper (pp. 30, et scq. and figs. 15 B-F) to several "species" of capsules 

 of Cattorhynchus ; e. g., Specimen 7983, Zool. Mus. Jardin des Plantes, Cape of Good Hope (Quoy and 

 Gaimard); Specimen 7982, Zool. Mus. Jardin des Plantes, Cape of Good Hope (Voyage Peron); 

 Specimen 7984, Zool. Mus. Jardin des Plantes, Chile (Martinez) ; Specimen 8823 A, Zool. Mus. Jardin des 

 Plantes, Straits of Magellan (Savatier). Also to specimens from Australia in the British Museum. 



TABLE D. Egg-Capsules of Fossil Chimceroids. 



fschyodus ( = Alclodus) fcrrugineus : 

 (Upper Jurassic) 1901, Jaekel, O. 



The fossils Spirangium, Palasoxyris, Fayolia, and similar forms may prove to be the egg- 

 capsules of Chimseroids or of cestraciont sharks. From their imperfect preservation, 

 however, they may equally well be coprolites of fishes having spiral intestinal valves. To 

 a somewhat more definite category, however, belongs the following "Spirangium" : 

 Spirangium: 



1903, Sauvage, H. E. 



Cf. fig. 13. If this prove to be a Chimaeroid egg-capsule it is remarkable in a feature suggest- 

 ing the capsule of a cestraciont marginal webs arranged in spiral. 



