Mr. 0. Thomas on a neiv Species o/' Microgale. 337 



perhaps assist in any way in makina- the web ? I have cer- 

 tainly never seen it employed in that operation. 



EXPLANATION OF PLATE XIL 



Fi(/. 1. Articulatiou of an auditory hair in Pachi/gnatha Listeri, Suud. 



/(, auditory hair (broken sliort) ; 6, cup ; ch, chitinous envelope ; 



m, matrix ; hh blood-sinus ; n, main nervous cord of the leg ; 



m', a muscular fibre. 

 Fig. 2. An auditory hair with its cup, from the same animal, seen from 



above. 

 Fip. 3«. A rudimentary cup of the tarsus of the same. 

 Fig. 3 h. The same seen from above. 

 Fig. 4. A longitudinal section through a maxilla of the same, m, 



muscle, cut through ; vul, maxillary gland, cut through ; t, 



a tactile bristle; go, the olfactory organ. 

 Fig. 5. A part of the olfactory organ, mure highly magnified, ch, per- 

 forated chitinous envelope ; z, olfactory cones; ?i, nerve-fibres ; 



;;/, membranous plate passing under the olfactory cells. 

 Fig. 6. A part of the olfactory organ from above, more highly magnified. 



a shows the pores of the chitinous envelope, and at the same 



time the transverse section of the subjacent olfactory cells. 

 Fig. 7. Organ at the end of the metatarsus, seen from the surface. 

 Fig. 8. The same, in longitudinal section, m, matrix ; hi, blood-vessel. 



XLI. — Description of a new Species o/'Microgale. 

 By Oldfield Thomas, F.Z.S., Natural History Museum. 



In 1S82* I had the pleasure of describing- two small shrew- 

 like Insectivores collected in Eastern Betsileo by the E,ev. W. 

 Deans Cowan, and founding for them the genus Microcjale in 

 the family Centetid^ ; and I now have to add to them a third 

 species much larger than either, and differing in several more 

 or less important details. I propose to associate with it the 

 name of l)r. G. E. Dobson, the author of the ^ Monograph of 

 the Insectivora,' in which work an account of the anatomy 

 of the two original species has already appeared f. 



Microgale Dohsoniy sp. n. 



Colour and general appearance very much that of a large 

 shrew. Head long and narrow, the nose produced into a long 

 slender snout. Ears large and thin — laid forward they just 

 cover the eye ; their structure as in M. longicaudata, but their 

 outer edge less concave. Fore feet with hve well-developed 

 toes and small equal-sized claws ; fifth toes reaching to the 

 proximal end of the terminal phalanx of the fourth. Hind 



* Jouni. Linn. Soc.,Zool. xvi. p. 3l!>. 

 t Pt. -2, pp. m a to c (1883). 



