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Show hitherto described species, but allied to several new species I have r S 1' £ n • S°me affillit,y with & ambitiosus B.-L., but has a little told in the hind edge of the first segment of the truncus: the apex of the telson is quadrangular, not narrowed in the middle, and the exopodite of the uropods scarcely visible. [I have slightly modified, or occasionally condensed, the language of these descriptions kindly supplied me by M. Budde- Lund.-W. F. L.] E XP LAN A T IO N OF THE PLATES. P l a t e X X X IV . Fig. 1 . Diogenes desipiens (p. 306). Antennal region. 1 a. Left chela. 2 . Diogenes mixtus (p. 367). Antennal region. 2 a. Chela. 2 b. 3rd left le" 3. Balanus amaryllis dissimilis (p. 369). '3 - 3 a. Scutum. 3 b-c. Terirum 4. Balanus ceneas (p. 370). From above. 4 a. Scutum. 4 5 . Terguin. P l a t e X X X V . Fig. 5. Platylepas opliiopliilus (p. 371). From above. 5 a. From below. 5b A lateral compartment, seen from the inside. 6 . Dichelaspis occlusa (p. 373). From the side. 6 a. Tergum. 6 b. Carina. 6c. bcutum. 7. Dichelaspis equina (p. 375). Carina, la. Tergum, typical form. 7 b-c. Two different forms of the tergum. 7 d. Scutum. 8. Cymothoa pulchrum (p. 377). From above. 8 a. From the side. 9. Rocinela mundana (p. 378). From above. 9 a. Posterior leg. 10. Sphceromafelix (p. 379). From above. 4. On a Collection o f Dragonflies made by the Members of the " Skeat Expedition " in the Malay Peninsula in 1899-1900. By F. F. L a id l aw , B.A. [Received November 18, 1902.] P ar t I I .1 Cf f lNAGRIONIN JE. In dealing with the last of the subfamilies represented in this collection, I have attempted as before to give a complete list of species hitherto recorded from the Peninsula. This list will shortly prove to be incomplete, for I have in my hands awaiting examination a fine collection of Odonata, made by Mr. Annandale, who has revisited the Peninsula; and, from a casual inspection of his specimens, it is evident that it includes a number of species which are, if not new to science, at any rate new to the Peninsula. Further, I am informed by Dr. Foerster, to whom I am much indebted for kind assistance and courtesy, that he has recently received a large consignment of Odonata from the same locality, including new and remarkable forms. I venture to hope, however, that the present list may none the less be of some service. I take the opportunity of correcting two or three errors, of which I find I have been guilty in the first part of this account. 1 Part I ., see P. Z. S. 1902, i. p. 63. 1 9 0 2 .] ON THE DRAGONFLIES OF THE " SKEAT EXPEDITION." 381 |