124 Mr. Ti. T. Pocock oti the 



unquestionably to the Mediterranean fauna of the Pala3arctic 

 region. 



Thus tlie western Pala}aretic element is almost equal to 

 the Antillean — a circumstance which is both interesting and 

 sur])rising, seeing that the ])lants, land-mollusca, insects, and 

 spiders appear to be almost wholly West-Indian or East- 

 American. 



Also of considerable interest was the small series of species 

 obtained from Tenerifte, showing the distinctly Mediterranean 

 character of the mainland fauna of this island. 



Class CHILOPODA. 

 Fam. Scutigeridae. 

 Scutigera coleojHrata (Linn.). 

 Loc. Bermuda. 



Scutigera plamceps J sp. n. 



Scutif/era rugosa, Porath, " Myriopoda Africfe australis in Mu-seo Regi'j 

 Holmiensi asservata," (¥J\. Vet.-Akad. Forhandlingar, 1871, no. 9, 

 pp. II.'jS, 1139 (not Scutiijera rugosa, Newport, Linn. Trans, xix. 

 p. 353, 1845). 



Loc. Simon's Bay (Caj)e Town). A single specimen. 



Poratli's description of this species is sufficiently accurate 

 to leave no doubt as to tlie specific identity of his specimens 

 with the one mentioned above. But since these specimens 

 are certainly totally distinct from rugosa of Newport, the type 

 of which is preserved in the British Museum, it is necessary 

 that they receive a new name. It is proposed therefore to 

 call thom planiceps, in commemoration of perhaps their most 

 marked characteristic, namely the flatness of the upper surface 

 of the head. 



Poratli's specimens were evidently somewhat faded, for he 

 merely describes them as being " sui)ra nigrescens, subtus 

 pallidior." In reality the general tint of the upper surface is 

 a deep black-brown ; but when more critically examined the 

 tergites arc seen to be adorned with a median black longitu- 

 dinal band and to be black at the sides, the intermediate area 

 being of a reddish-brown tint ; the legs are a pale olivaceo- 

 testaceoua colour and the tarsi are ochraceous. The stomata 

 are small and the stoma-saddles very low. 



Sc. rugosa of Newport, from East Africa, wliich Porath 

 mistook for this species, is very different. It is a very beautiful 

 form, the tergites being a deep black, this sombre colouring 

 being relieved by an orange-yellow mcflian dorsal band which 



