Chilton. — On Neic Zealand Idoteidye. 203 



centre ;■■• the seventh segment of tbe thoi'ax is small, only 

 about half as long as the sixth, and bears no appendages ; the 

 three sutures on the postabdomen are clearly marked, the first 

 extending further across the body than the other two ; the 

 epimera of the fifth and sixth segments only are visible in 

 dorsal view, and these are small, and the flagellum of the 

 antenna is represented by one joint equal in length to the last 

 joint of the peduncle, and followed by a minute second joint. 



Cleantis tubicola. 



Clcantia tnbicola, Thomson, " N.Z. Jour, of Science," 

 ii., p. 577 (1885): Thomson and Chilton, "Trans. N.Z. 

 Inst.," xviii., p. 156 (1886); Thomson, "Trans. N.Z. Inst.," 

 xxi., p. 264, pi. xiv., figs. 5-8 (1888). 



Body narrow, much elongated, with the sides perfectly 

 parallel. Head with its lateral margin produced downwards 

 into an angular lobe, its front margin nearly straight, its 

 posterior margin produced backwards in the middle into an 

 excavation of the first thoracic segment. First thoracic seg- 

 ment subequal in length to the head, antero-lateral angles 

 slightly j)roduced forward ; second segment rather shorter ; 

 succeeding segments subequal, hardly exceeding the first in 

 length. The postabdomen nearly equal in length to the five 

 preceding segments of the thorax, apparently consisting of two 

 short segments, the second of which is indistinctly marked and 

 has the f)Osterior margin emarginate, followed by the long- 

 third segment, which bears two indistinct sutures on each 

 side ; sides parallel except towards the end, where they curve 

 inwards to the extremity, which ends in a deep semicircular 

 notch. Eyes narrow, transverse, placed near the antero- 

 lateral angles of the head. Antennules reaching to the end of 

 the third joint of the peduncle of the antennae, peduncle three- 

 jointed, flagellum of one long joint, ending in a ^■ery short 

 joint and a tuft of setae ; antennae thick and pediform, as long 

 as the head and first three segments of the thorax ; peduncle 

 five-jointed, the first very short, and concealed in dorsal view 

 by the head, the remaining four subequal in length, the flagel- 

 lum apparently represented by a single tapering joint about 

 equal to the last joint of the peduncle. The legs short and 

 somewhat compressed, first broader and shorter than the 

 second and third, the third rather longer and more slender 

 than the second, the fourth much shorter than the third and 

 placed transversely, the three last pairs increasing in length 

 posteriorly. Epimera of second to fourth segments indistinct, 

 those of fifth and seventh segments distinct and with the ex- 



* Compare Miers, "Revision of the Idoteidce," "Jour. Linn. Soc," 

 xvi., pp. 56, 57. 



