Mr. J. Nietaer on new Ceylon Coleoptera. 2 il 



parenchyma of the body, in which some dilatations of tlie longi- 

 tudinal vessel are placed. The arrows in the alimentary cavity 

 indicate the direction of the chyme-current, as in all other figures 

 where they are introduced. 



Fig. 10. Euplotes Charon, seen from the ventral surface. 



Fig. 1 1 . Diagrammatic section of a Paramecium, Externally is the skin 

 bearing the cilia ; then the parenchyma of the body, containing 

 the two contractile vesicles and enclosing the digestive cavity. 

 Behind the mouth is the anus. 



Fig, 12. Amphileptus fasciola. 



Fig. 13. Enchelys farcimen, containing a small Infusorium which it has 

 devoured ; the animal itself is being sucked out by 



Fig. 14. A small Acineta ferrum-eqmnum, Ehrbg. This is pal« in co»se- 

 quence of long fasting, so that the horseshoe-shaped nucleus is 

 recognized. After feeding, it acquires the dark appearance of 

 fig. 15. 



XX. Descriptions of new Ceylon Coleoptera. 

 By John Nietner_, Colombo,, Ceylon*. 



Family CARABIDiE. 

 Tribe Chl^nid^. 



1. Chlanius Ceylanicus, N. 



C. subellipticus, subconvexus, glaberrimus, nitidus ; supra brunneo- 

 ^enens, capite, thoracis elytrommque marginibus aureo-viridibus ; 

 siibtus piceus, nrargine, pedibus oreque dilute castaneis. Long. 

 Corp. 5f lin. 



Caput ante oculos 2-impressum. Antennse art. 3° quarto paulo 

 longiore. Mentum dente magno excavato. Thorax subquadratua, 

 latitudine parurn longior, obsolete punctulatus, antice subconvexas, 

 iateribus deflexus, postice depressus, planus, 2-impressus. Elytra 

 subtiliter striato-punctata, obsoletissime punctulata. 



In stagnorum lipis inter arundii^s habitat; in prov. occid. et 

 merid. infrequenter legi. Per occasionem nocte ad lumen advolat. 



A handsome and interesting species, distinguished as well by 

 its general shape, which is more elliptic and convex than usual, 

 as by its polished surface. The head is oblong and, with the 

 exception of the mouth, the parts of which are of a deep brown, 

 of a bright metallic green, divided longitudinally by a streak of 

 copper colour. The thorax is rather longer than broad, round 

 in front and flat behind, and finely punctured all over ; it is of 

 a brownish metallic colour bordered laterally with bright green. 

 The elytra are of the same colour as the thorax, the same bright 

 green stripe running along the sides ; the margin, properly speak- 

 ing, is deep brown ; the elytra are impressed with rows of fine 

 indistinct punctures, and with the usual series of larger setigerous 



* From the Journal of the Asiatic Society of Bengal, No. V. 1856. 

 Jnn. ^ May. N. Hist. Ser. 2. Vol. xix". 16 



