420 Dr. M. Burr — Notes on the Forficularia. 



f?'ont of the uterus in gravid segments. Yolk-gland dorsal to 

 ovary. Eggs with three transparent envelopes. 



Species ; Octopetalum gutterce, sp. n. With the cliaractcrs 

 of the genus. 



Host : Guttera edouardi, Hartl. 



Locality. Port Herald Hills, Nyasalancl. . 



Type-specimens in the British Museum (Natural History)^ 



EXPLANATION OF THE PLATES. 

 Plate XVIL 



Fig. 1. Head of Octopetalum guttera, seen as an opaque object. 



Fig. 2. Horizontal section of a sexually mature segmeut. CiS"., cirrus-sac ; 



Ex., excretory vessels ; L.M., longitudinal muscles ; Ov., ovary ; 



Ovd., oviduct; Te., testes; Ut,, portions of uterus; Vag., 



vagina ; V.D., vas deferens. 

 Fig. 3. Transverse section of a sexually mature segment. Ex., excretory 



canals; L.M., longitudinal muscles; N., nerves; Ov., ovary; 



Te., testes ; Ut., portions of uterus ; Vit., vitelline gland. 



Plate XVIII. 



Fig. 4. Horizontal section through distal end of cirrus-sac and vagina. 



C, cirrus; C.S., cirrus-sac; G.A., genital atrium; Vag., 



vagina. 

 Fig. 6. Horizontal section (somewhat oblique) through the genital ducts. 



£., expanded bulb of vagina; E.v., excretory vessel; U.S., 



receptaculum seminis ; Vag., vagina; V.D., vas deferens. 

 Fig. 6. View of an entire gravid segment, seen by transparency. B., bulb 



of vagina; E.v., excretory vessels; G.A., genital atrium; 



Par., paruterine organ; Ut., uterus; Vag., vagina; V.D., vas 



deferens. 



LIV. — Notes on the Forficularia. — XXIII. More new Species. 

 By Malcolm Burr, D.Sc, F.E.S., &c. 



Diplatys nana, sp. n. 



Statura minora ; fulvo-brunnea ; frons tumida ; pronotum sub- 

 lougius quam latins, postice subangustatum ; abdomen fere 

 parallelum, segmentum ultimum baud infiatum, penultimum 

 truncatum ; forcipis bracchia <S ? contigua, brevia, recta. 



6. $. 



Long, corporis 5-6 mm. 5*5-6*5 mm. 



,, forcipis 1 ,, -75 ,, 



Small ; grey and brown, varied with yellowish ; antennae 

 yellow, 9-10 segments, which seem disproportionately long 



I 



