Bev. A. M. Norman on two new British Isopods, 421 



EXPLANATION OF THE PLATES. 



Plate XXI. 



Fig. 1. Haploops tubicola, Lilljeborg. Last pereiopod, X 40. 



Fig. 2. The same. Last uropod, x40. 



Fig. 3. The same. Telson, X 40. 



Fig. 4. Nici2>pe tumicla, Bruzelius. Gnathopod^ X 40. 



Fig. 5. The same. Last pereiopod, X 40. 



Fig. 6. The same. Telson, X 40. 



Fig. 7. Eriopis elotigata, Bruzelius. Second gnathopod, X 40. 



Fig. 8. The same. Last pereiopod, X 40. 



Fig. 9. The same. Last uropod (after Bruzelius). 



Fig. 10. The same. Telson (after Bruzelius). 



Fig. 11. McBi'ii Loveni., Bruzelius. First gnathopod, X 16. 



Fig. 12. The same. Second gnathopod, X 16. 



Plate XXIL 



Fig. 1. M(^a Batei, Norman. First gnathopod, J, x40. 



Fig. 2. The same. Second gnathopod, S y X40. 



Fig. 3. The same. End of pleon. 



Fig. 4. Tessarops hastata, Norman, X 16. 



Fig. 5. The same. Superior antenna, X 40. 



Fig. 6. The same. First gnathopod, X 40. 



Fig. 7. The same. Second gnathopod, X 40. 



Fig. 8. Helleria coalita, Norman. Fore part of body, X 40. 



Plate XXIII. 



Fig. 1. ITelleiia coalita, 'Normon. Second gnathopod, X 40. 



Fig. 2. The same. Extremity of same, X 85. 



Fig. 3. The same. Last pereiopod, X 60. 



Fig. 4. The same. Last segment of pleon, X 40. 



Fig. 5. The same. Last uropod, X 60. 



Fig. (d. The same. Telson, X 63. 



Fig. 7. Microprotopus maculatus, Norman. First gnathopod, (5* , X 85. 



Fig. 8. The same. Second gnathopod, c? , X 85. 



Fig. 9. The same. First gnathopod, $ , X 8o. 



Fig. 10. The same. Second gnathopod, $ , X 85. 



Fig. 11. The same. Telson and uropods,x8o. 



LIII. — On two Isopodsj belonging to the Genera Cirolana and 

 Anilocra, new to the British Islands. By the Rev. A. M. 

 NOEMAN, M.A. 



[Plate XXm. figs. 12-15.] 



Crustacea Isopoda. 



Fam. .ffigidae. 



Cirolana truncatUj n. sp. PL XXIII. figs. 12-15. 



Head much wider than long ; greatest width in the centre, 

 at the projection of the eyes, narrower behind and in front, 

 which is slightly tridentate. Su^perior antennce suddenly bent 

 in a remarkable way at a right angle at the junction of the 

 first and second joints of the peduncle, the first being projected 

 directly forwards, the second directly transversely ; third joint 



