PLATE XXVII. 
Diam. 
Fig. 1 . Leucosia australiensis, n. sp., adult male, . . x 
Fig. la. Thoracic sinus of the same species, . . . X 4 
Fig. 1?;. Inferior view of the cervical region, showing the form of the 
exterior maxilliped.es, . . . . X 2^ 
Fig. lc. Post-abdomen of the male, . . . X 4 
Fig. 2. Leucosia haswelli , n. sp., adult female, . . . x 
Fig. 2a. Thoracic sinus, showing the disposition of the tubercles, . X 
Fig. 2b. Inferior view of the cervical region, showing the form of the 
exterior maxillipedes, . . . . . X 
Fig. 3. Leucosia craniolaris (Linne), adult male, 
Fig. 3a. Thoracic sinus, . 
Fig. 36. Post-abdomen of the male, 
X 
*2 
3 
4 
3 
4 
4 
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x 
