246 L. A. BORRADAILE. 



It is impossible to say whether any or all of these features be due to the presence of the 

 parasite. 



The figure of a specimen referred to this species in the P.Z.S. for 1900 [pi. XLii., fig. 9] 

 was drawn with the hair on the body and in consequence the side-teeth and frontal notch 

 have not been shown by the artist. 



Dredged in 22 — 45 fathoms in Haddumati, Felidu, Addu, Mulaku, North Male, South 

 Nilandu, Suvadiva, and Kolumadulu Atolls. 



Fio. 46. Pihimmis rottindus; a. whole animal, h. outside of hand. 



9. Pilumnus rotundus, n. sp. (Fig. 46). 



Diagnosis : " A Pihuiihus with the carapace very convex, subglobular, covered with short 

 hairs, the regions faintly marked ; the lobes of the front only moderately prominent, with faintly 

 granular edge ; the lower rim of the orbit denticulate, the upper rim granular, with two distinct 

 but shallow notches; the anterolateral edge bearing four spiniform teeth, of which the first is 

 the orbital angle, the teeth being short and set wide apart and having smaller teeth at their 

 bases ; the chelipeds rather unequal, covered outside with .stout thorns, which are arranged in 

 somewhat irregular rows and are largest on the upper side, the fingers bent at an angle with 

 the hand, the moveable finger bearing a strong ridge above ; and the walking legs moderately 

 long, covered with long hairs, and with a thorn on the upper edge of the meropodite and one 

 at the end of both the meropodite and the carpopodite." 



Length: 8 mm. Breadth: 12 mm. Colour in sjiirit : yellowish-white, with white fingers. 



Dredged in 35 fathoms in Kolumadulu Atoll. 



10. Pilumnus do7-sipes Stimps, 1858. Alcock, ill. p. 197. 



The specimens agree very closely with Alcock 's definition, but I am quite unable to detect 



