ORAL APPENDAGES OF MARINE ISOPODA. 91 



17. Milne-Edwards, H. — Histoire naturelle des Crustaces. Paris, t. iii. 



(1840) pp. 115-284, pis. 31-33. 



18. Ohlin, Axel. — Isopoda from Tierra del Fuego and Patagonia. I. Val- 



vifera. Svenska Exped. till Magellan. Bd. ii. (1907) pp. 261-306, 

 pis. 20-25. 



19. Racovitza, E. G-., and Sevastos, R. — Proidotea haugi, n. g. n. sp., 



Isopode oligocene de Roumanie et les Mesidoteini nouvelle sous- 

 famille des Idotheidse. Arch. Zool. exp. et gen. s. 5, t. vi. (1910) 

 pp. 175-200, pis. 9, 10. 



20. Kichardson, Harriet. — A Monograph of the Isopodsof North America. 



Bull. No. 54, U.S. Nat. Mus. 1905, pp. liii + 727, & 740 figs. 



21. Description of a new Genus and Species of Isopod Crustacean of 



the Family Idotheidae, from the Mouth of the Rio de la Plata, 

 Argentina, South America. Proc. U.S. Nat. Mus. vol. xl. (1911) 

 pp. 169-171, figs. 1-4. 



22. Sars, G. 0. — Account of the Crustacea of Norway. Vol. II. Isopoda. 



1897. 



23. Stebbing, T. R. R,- South African Crustacea. Pt. L, 1902, pp. 14-66, 



pis. 1-4 (publ. July 20th, 1900). Pt. II., 1904, pp. 1-92, pis. 5-16 

 (publ. Oct. 7th, 1902). Marine Investigations in South Africa. 



24. General Catalogue of South African Crustacea. Ann. Sth. Afr. 



Mus. vol. vi. (1910) pp. 281-593, pis. 15-22. 



EXPLANATION OF THE PLATES. 



No attempt has been made to introduce the exact number of setae 

 into the different figures. 



Plate 7. 

 Fig. 1. Chiridatea cceea (Say). Ventral -view of the right maxillipede. x 38. 



2. tuftsii (Stimpson). Ventral view of the left maxillipede. x 38. 



3. Mesidotea sabini (Kroyer). Ventral view of the terminal portions of the inner and 



outer lobes of the light first maxilla, x 19. 



4. . Ventral view of the terminal portion of the second maxilla. X 19. 



5. Ventral view of the right maxillipede. X 9. 



6. Pentidutea resecata (Stimpson). Ventral view of the terminal portions of the inner 



and outer lobe8 of the right first maxilla. X 19. 



7. Ventral view of the left maxillipede. X 7 5. 



8. ivosnesenskii (Brandt). Ventral view of the terminal portions of the inner 



and outer lobes of the right first maxilla, x 19. 



9. Ventral view of the right maxillipede. X 19. 



10. whitei (Stimpson). Ventral view of the terminal portions of the inner and 



outer lobes of the left first maxilla. X 38. 

 11. Ventral view of the left maxillipede. X 19. 



