558 MR. n. N. RIDLEY ON THE 



subtus duabus setis lougis ; articulis secundis longioribus multo 

 tenuioribuR pubescentibus, supra spina crassa armatis ; tcrtiis 

 tenuioribus, a?quilougis, subtus sctiferis ; tarsis multo brevioribus 

 setiferia, uncis parvis duobus terminalis. Inter coxaa tres 

 squamse, ovales, obtusa?, quam coxas minores. Abdominis 

 segmenta subseqnalia, glabra. Segmentum ultimum breve. In 

 medio penultimi segment! appendices duse breves, complanatfe, 

 acutaD ; post eas duse laterales, breves, teretes, hispida), tunc 

 du8D longae multo longiores et tenues hispida3, tunc dua) longa^ 

 graciles bispida>, et in medio appendix longissima unica, crassior, 

 setosa, articulata et anuulata. 



The abdomen was filled witb some bright green substance, 

 whicb was emitted from the mouth when touched — apparently 

 green paint nibbled off the shutters. 



The most nearly allied species to this which I have seen was 

 obtained in Socotra, and is now in the British Museum. The 

 breadth of the thorax is greater than in L. saccharina, but the 

 head is not concealed as in some s])ccies. 



Lepisma corticola, n. sp. 



Parva, 1 cm. longa, angusta, metallica plumbea, durso arcuato 

 uec complanato. Caput parvum, rotundatum ; oculi ad basin an- 

 tennarum, rubri. Antennae graciles, annulatse, hispida' ; articulus 

 basalis maximus, reliqui breves, plurimi, crassiusculi. Palpi 

 maxillares 5-articulati, articulis breviusculis. Palpi labiales 

 breves, clavati ; articulus basalis brevis sectus, secundus longior, 

 tertius brevissimus conicus, quartus rotundatus brevis. Thorax 

 angustus, quam abdomen vix latior. Prothorax quam meso- 

 thorax longior, metathorax brevior, marginibus omnium ciliis 

 rigidi« munitis. Pedes longiusculi, hispidi ; coxae breves, latse 

 nee crassse ; sccundo paullo angustior et brevior; tarsi longius- 

 culi, trin;iguiculati ; squama iuter coxas prothoracis ovata acuta 

 magna, altera} minores. Abdomen breviusculum ; ap|)en(lices 

 segmenti ultimi graciles, hispida^, breviusculse, subsequales. 



In rotten wood and under stones in the Sapate and the base 

 of the Peak. It also occurred on the mainland at Pernambuco 

 • in similar localities. 



The chief peculiarity of this Lej)ismn is its very rounded back, 

 resembling that of a Machilis rather than tliat of a typical 

 Lepisma. It is a small active species occurring singly, of a dark 

 leaden-grey colour. The scales resemble those o£ L. saccharina 

 in outline, but are more notched at the upper edge, and seem 



