150 THE VOYAGE OF H.M.S. CHALLENGER. 



specimens there are several small teeth on the inner margin ; the propodos is also fringed 

 on both margins with several minute denticles, and the external or dactyloid angle is 

 armed with a strong cusp or tooth. The posterior pair of pereiopoda is chelate, the 

 dactylos and pollex being subecmal in both sexes. 



Length (male and female), 57 mm. (2 - 25 in.). 



Habitat— Station 170, July 14, 1874; lat. 29° 55' S., long. 178° 14' W.; off the 

 Kermadec Islands ; depth, 520 fathoms; bottom, volcanic mud; bottom temperature, 43°. 



Pig. 33. — Pentacheles euthrix. From a drawing by Dr. v. Willemoes-Suhm. 



Station 170a, July 14, 1874 ; lat. 29° 45' S., long. 178° 11' W.; near the Kermadec 

 Islands ; depth, 630 fathoms ; bottom, volcanic mud ; bottom temperature, 39°'5. Two 

 female specimens. 



Station 173, July 24, 1874 ; lat. 19° 9' 35" S, long. 179° 41' 50" K; off Matuku ; 

 depth, 315 fathoms ; bottom, coral mud. Male. 



The surface of the carapace is granulated ; out of each granulation springs a small 



