232 



« 



Lithodes, Latreille. 



Zithoies, Latreille; Henderson, Challenger Anomura, p. 42 (and references). 



Rostrum long, horizontal, and spinose : a spine on either side of it at the 

 antero-lateral angle of the carapace forms a sort of orbit, by accenting the 

 orbital notch. 



The median portion of the 3rd-5th abdominal somites is membranous and 

 covered with small calcareous platelets : in the female the lateral plates of these 

 somites are very much larger on the left side than on the right. 



The outer angle of the 2nd joint of the antennal peduncle is produced to 

 form a spine, inside of which, in the Indian species, there is no large acicle. 



11. Lithodes agassizii, S. I. Smith. 



Lithodes agassisii, S. I. Smith, Bull. Mus. Comp. Zool. X. 1882, p. 8, pi. i : Henderson, Challenger Anomura. 

 p. 42: Anderson, J.A.S.B., LXV. pt. 2, 1896. 



A single small specimen, which is undoubtedly the young of this species, 

 was dredged off the Cochin (Malabar) coast in 406 fathoms. The spines of the 

 carapace and rostrum are of enormous length. 



Eegd. No. ^ 



Paealomis, White. 



Paralomis, White; Henderson, Challenger Anomura, p. 44 (and references). 



Rostrum three-pronged, a spine on either side of it accents the orbital notch. 



In the 3rd-5th abdominal somites the median plates are large and the 

 lateral plates subequal in both sexes. 



The outer angle of the 2nd joint of the antennal peduncle is produced to 

 form a spine, inside of which is a large spinose movable antennal acicle. 



The molar and incisor processes of the mandible are separated by a deep 

 groove: the mandibular palp is large and 3-jointed. The 1st maxillse have a 

 simple palp. In the 2nd maxilla? the coxa and basis are transversely fissured, 

 and the large scaphognathite is posteriorly truncated. All three pairs of 

 maxillipeds have flagellate exopodites, but no epipodites. The external 

 maxillipeds are stoutly pediform and six-jointed, the basis and ischium being 

 fused. 



The gills, which are phyllobranchias, are 11 on either side, namely 5 pairs of 

 arthrobranchise (somites IX-XIII) and a single pleurobranch (somite XIII). 



