TW(. NEW SPECIES OF ONYCHOPHORA. 495 



The Openiiigs the Crural Glands: — Crural glands 

 only occur in the males, and open into the crural grooves, so 

 close to the aperture of the renal organs tliat they may be 

 said to debouch into a common pit in the groove. They 

 occur only in the two pairs of legs situated in front of the 

 genital orifice, and are placed on the outer side of the renal 

 pores. There are two openings, corresponding to the couple 

 of glands found in every leg of the two pairs above men- 

 tioned. It is just possible that, were a sufficient number of 

 specimens examined, they would be found still further for- 

 wards, as is the case in P. Edwardsii (7). 



The Feet: — The feet present the same general structure 

 as in all the Peripatidie. They are provided with a terminal 

 pair of sickle-shaped claws and a number of papillee. Dr. 

 Horst described them iu Vj. sumati-anus as being provided 

 with only two papillte, and as having their ventral surface 

 divided by a longitudinal and a transverse groove into four 

 elevations (8). Mr. Sedgwick pointed out that, if Horst's 

 description was correct, E. sumatranus was unique; for iu 

 all other species of Peripatid^e the foot was provided with at 

 least three papillae (15). 



Renewed examination of E. Sumatranus has proved the 

 correctness of the above description as far as it goes. It is 

 equally applicable to the feet of the species from the Malay 

 Peninsula, wliich have only two primary papillae situated one 

 on the {interior and one on the posterior distal margin. The 

 four elevations on the ventral surface seem to be four papillfB 

 which are but slightly raised above the general surface, and 

 are pressed against the sides and ventral surface of the foot. 

 The elevations in question carry at least one spine wliich was 

 not mentioned by Horst in the species Sumatranus, but has 

 been described by Bouvier iu some American forms (P. 

 Greayi, Bouvier). As a rule the distance between the erect 

 papillae and the distal one of the above elevations equals that 

 between the two ventral elevations on each side of the foot; 

 but occasionally the distal elevation is displaced, and be- 

 comes located near the erect papillae which are situated on 



