MACRURA. SCH MITT. 381 



mentioned in the description and cannot be ascertained 

 from the photograph." I, therefore, avail myself of the 

 present opportunity to supply that information. The 

 dactyls in the third and fourth legs are about one- 

 fifth the length of their respective propodi, a little more 

 in the case of the third legs and a little less in the 

 fourth legs. The length of the dactyls of the fifth pair 

 of legs is contained from five and one-third to five and 

 three-fourths times in their propodi. These proportions 

 are based on the specimen photographed and figured in 

 Miss Rathbun's report. In another larger specimen of 

 the type lot, the third and fourth pairs of legs are 

 wanting, and the dactyls of the fifth pair are contained 

 five and three-fourths times in their propodi. 



Heterocarpus longirostris MacGilchrist, 64 the species 

 alternative with H. signatus in de Man's key cited above, 

 as figured, 65 appears to have the dactyls about one-fourth 

 the length of the propodus in the case of the third and 

 fourth legs to about one-sixth the length of the propodus 

 in the case of the fifth legs. 



"Ann. Mag. Nat. Hist. (7), xv., 1905, p. 237. 



85 Illus. Zool. "Investigator," 1905, pi. Ixxi., fig. 2, 2a. 



