118 PROF. A. D. IMMS ON 



pedum 2}osteriorum etiaiii trihus appendidhus filiformihiis instructi. 

 Mua^ones furculce lati, laminati. Long. •5--75 mm. 



Antennce. — Slender, the joints related to one another in length 

 as 8 : 11 : 22 : 32 ; the terminal joint only with slight indications 

 of annnlation (fig. 83). 



Trunk. — The abdomen provided dorsally with a few short, 

 curved, scattered hairs. 



Legs. — The first and second pairs similar (fig. 85); the superior 

 claws very long, at least two and a half times as long as the 

 breadth of the tibia, slightly curved at their apices, unarmed. 

 The inferior claiv appi'oxin lately one fifth longer than the superior 

 claw, setiform and whip-like, usually with a minute tooth on its. 

 yenti-al aspect towards the base. The superior daios of the third 

 pair of legs shorter and smaller than those of the preceding- 

 pairs; the inferior claivs whip-like, armed at about the middle of 

 their length with a group of three filiform dorsal appendages, and 

 a small tooth situated close to the latter on the ventral suiface 

 (fig. 84). No tenent hairs to the feet. The tibife of the third 

 pair of legs provided with three apical sense organs (?) on the 

 inner side (fig. 84). 



Ventral Tube. — Very short, without elongate vesicles. 



Furcula. — The denies., without their mucrones^ equal in length 

 to the abdomen; slightly curved ventralwards. The mticrones 

 very large (fig. 86), at least as wide as the maximum width of 

 the dens, lamellate. 



Coloration. — Ground colour leaden, the legs and spring paler. 

 The eyes on a black patch on each side of the head. The antennae 

 dark leaden coloured with a purplish suflusion. A pale yellow 

 dorsal area on the head, bearing a small bluish-purple patch 

 between the eyes. The trunk indigo-blue dorsally, witli .small 

 pale yellow markings. 



Length varying from -S-^TS mm. 



Twenty-one specimens taken on the surface of water at Calcutta 

 (^Indian Museum Collector^ January 9th, 21stj and 22nd, 1908). 



Nos. — and -^ Indian Museum Coll. 



Ill, A Catalogue of the Oriental Collembola, 



In defining the area comprised within the Oriental region, I 

 have followed Blanford * in taking for its northern boundary the 

 limits of forest growth in the Himalayas ; while as regards the 

 south-eastern boundary, I have followed the later views that 

 are well summarised by Pelseneer t and supported by the results 

 of the "Siboga" expedition, Pelseneer proposes the name ot 

 " Weber's Line " for the south-eastern boundary, which is regarded 

 as passing east of Timor and through the Banda and Molucca Seas. 



* "The TCstribution of Vertebrate Animals in India, Ceylon, and Burma." 

 Phil. Trans. Koy. Soc. vol.194, 1901, p. 347. r. " 1^.11 T?p1o- 



t " La Lignede Weber, Liniite Zoologique de I'Asie et de I Austiahe. bnll. Helg, 

 Acad. 1904. 



