PLATE III 



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i. i . /. [2? and lob. Dichelaspis orthogonia Darwin. 



i. ,i. Scutum; />. Tergumj c. Carina; magnified 19 diameters. 

 Fig. i.l. Very young specimen; magnified 36 dianieters. 

 I iB. Young specimen; magnified y> diameters. 



ii ma trom the interior; magnified 15 diameters. 



I - 7- Dichelaspis Weberi n. sp. 



Animal, lateral view; magnified 6 3 / a diameters. 



,/. Scutum; b. Tergum; c. Carina; magnified 10 diameters. 



1 arina, external view of the disc; magnified 10 diameters. 



Mandible; magnified 134 diameters. 



Maxilla; magnified 134 diameters. 



(»uter maxilla; magnified 52 diamei 



1;. Dichelaspis Versluysi n. sp. 



li'. S. Animal. lateral view; magnified 11 diameters. 



9. a. Scutum; 6. Tergum; c. Carina; magnified 15 diameters, 

 icw. Carina from the interior; magnified 15 diameti 

 . 11. ii. Mandible, magnified 63 diameters; b. inferior angle of the 

 mandible of the right side; c. the same of the mandible of 

 the left side. 11/' and c magnified 160 diameters. 

 ij. Maxilla; magnified 180 diameters. 

 Fig. 13. Caudal appendage; magnified 63 diameter-. 



Fig. 14. Dichelaspis Versluysi, varietas. 



Fig. 14. Animal, lateral view; magnified 11 diameters. 



