Bevision of the Genus Teracolus, Strains. 451 



the mero3 and carpos, against wliieli apparently it impinges 

 and between wliieli it is received. 



Pereiopoda all wanting, except one of the fourth pair 

 (which, on account ot' its brittlcncss, went to pieces during 

 dissection), which was ab>ut one tliird as long as the body, 

 and the j<»ints of which were rather slender and were sparingly 

 furnished with short almost spinose setie. 



IHnojiodti slender. 



First and second uropods reaching nearly to the extremity 

 of the third pair. (Unfortunately, owing to the fragile state 

 of the specimen, these appendages were broken up during 

 dissection, so that details could not be satisfactorily settled.) 



Tchon apj)arentiy very short, cleft at the apex, and each 

 Tiide tipped wilh a very short spitie (not well made out). 



Length 4 miliiin. 



Ihd). Taken with the dredge in about 8 fathoms in the 

 Bay of Islands. 



EXPLANATION OF PLATE X. 

 ''iys. 1-5. Mara Chiltoni. 

 L Animal, x '20. 



2. MiiiidibK', X 12;'). 



3. Cjiiatliopod of tirst piiii', X oU. 



4. Gnathopoil of secoud j)air, x o(J. 



o. Telson and la>t pair of uropods, X oG. 

 Fii/8. 6-10. Mceru Has well i. 



6. Animal, X 20. 



7. lia.>e of niandilile, X ll'o. 



8. -Mandibular palp, X 12o. 



9. (inathopod of second pair, X 41. 

 10. Telson, X uO. 



LI 11. — A Reviaiuu uf the Species of Butterjiies helongimj to 

 the Genus Teracolus, Swains. By Arthur G. Butler, 

 Ph.D., F.L.S., F.Z.S, &c. 



[Continued from p. 399.] 



25. Teracolus Manaahari, 



Pieris Matianhari, Ward, Ent. Month. Mag. vi. p. 224 (1870) ; Afr. 



Lep. p. 2, pi. ii. tigs. 1-4 (1873). 

 Anthocharisjiavida, P. Mabilie, Bull. Soc. Ent. Fr. (5) vii. p. .\x.\:vii 



(1877). 

 Teracolus Jlai'idus, P. Mabilie, Grand. Madag. pi. xl. figs. 1, 1 a, 2, 2 a 



(1885). 

 Teracolus nuthus, Mabilie, /. c. p. 290 (1886)*. 



^Madagascar. 



* M. Mabilie quotes pi. xxxvi. a. fig. 2, but no such plate appears to 

 have been published hitherto : at any rate, it is not in the Museum Atlas 

 to the Avurk. 



