rLATE XXII. 



Fig. 



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Fig. 



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Fig. 



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Fig. 



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Fig- 



13. 



Fig. 



14. 



Gorgonocephalus Diomedecc Ltk. & Mrtsn- Dorsal Ride. Natural size. 

 Astcronyx excavata Ltk. & Mrtsn- Ventral side. 



a 



a 



a 



u 



a 



a 



u 



u 



u 



c< 



u 



iC 



u 



ii 



a 



a 



a 



a 



c< 



a 



Dorsal side* 



Side view of arm, in the larger part of it. 



Ventral view of arm, in the larger part of it 



Arm-spines. 





plana Ltk, & Mrtsn- Side view of arm. 



it 



a 



u 



u 



Ventral view of arm 

 Arm-spines- 



dis2)ar Ltk. & Mrtsn, Side view of arm, in the larger part of it. 



a 



ii 



u 



a 



Ventral view of arm, in the larger part of it 

 Arm-spines. 



Astroschema suhlawQ Ltk. & Mrtsn. Ventral side. 



u 



u 



ii 



ii 



Dorsal side. 



H 



1^ 



^ 



f 



I 



\ 



^ 



^ 



'[ 



