297 



rostris S. I. Sniitli aud (Jhjplt. oinirui i uxon (W. I^'axüx, in: Buil. Mus. 

 Cümp. Zool. Vol. XXX, N" 3, Cambridgc, Mass. 1 896, p. 1 59, footnote). 



Rostrum in the adult male one-fourth, in the fuU-grown female 

 one-third shorter than the carapace, constantly shorter than in 

 (Hyph. viciiria Faxon, upper surface smooth on each si de of the 

 median ridge, while in the two other quoted species it is trans- 

 versely corrugated. Tlie rostrum is narrower in front of the an- 

 terior lateral spines than in G/i/p/i. foiigirostris, but for the rest 

 resembles that of this species (S. I. Smitii, Report Decap. Crust. 

 Albatross Dredgings, Wash. 1886, PI. VUT, Fig 2 and IX, Fig. 3), 

 also as regards the form, size and position of the conical, acute, 

 anterior tooth of the subdorsal crest. Orbital spine less strongly 

 turned outward tlian in GlypJi. louf/irosfris. Dorsal and subdorsal 

 crests of the carapace for the rest like in (ilijph. Sibogae n. sp., 

 but the tubercles a Jittle more prominent and subacute ; in 

 GJi/pJi. vicaria the tubercles are- spiny and much more prominent 

 than m Glypli. mcgcdophthalma. Hepatic region with 2 small tubercles 

 behind one another, posterior moieties of the 3''d and 4tli crests 

 straight, obtuse at the anterior extremity ; anterior moiety of the 

 4''' crest divided by a shallow notch into two parts, the anterior 

 part forming a sharp spine or tooth, that falls far short of the 

 anterior border of the carapace, the posterior part forming an 

 obtuse angle, that is less prominent laterally than the anterior 

 tooth. Abdomen as regards number and arrangement of the crests 

 and tubercles like Glyplu Siboyae, but all the crests and tuber- 

 cles are more or less distinctly cannated. Dorsal edges of telson 

 smooth or nearly smooth at base. 



Eyes (in spirit) light leather-coloured, not dark, of a large size, 

 the proportion between the length of the carapace, including the 

 rostrum, and the greatest diameter varying between 6,4 : 1 and 7,4 : 1. 



Antennal scale twice as long as broad, both margins with a 

 characteristic indentation, looking like a contusion, not far from 

 the obtuse tip. 



Second peraeopods shorter than any of the 3 posterior pairs, 

 which resemble those of GlypIi. Sihogae. 



Greatest diameter of ova 3,5 mm. 



21 



