CRUSTACEA COLLECTED IN PUGET SOUND, N.A. 275 



Genus Paguristes, Dana. 

 Paguristes turgidus, Stimpson. 



One specimen. This species inhabits a hairy shell, in 

 which its equally hairy chelipedes are difficult to see. 



MACKUEA. 



Family Crang-onim:. 

 Genus Crangon, Fabr., 1798. 

 Crangon munitus, Dana. 



One specimen. Length 45 mm. 



Wrongly placed under Sclerocrangon, by Ortmann (Proc. 

 Acad. Nat. Sci., Phil., 1895, p. 173). The shape of the 

 rostrum alone shows it not to belong to Sars' genus, as 

 denned hi Crust., Norwegian N. Atlantic Expdn., p. 14. 



Crangon vulgaris (Linn.), var. affinis, De Haan, 

 == C. nigricauda, Stimpson. 



Three specimens. Length 42 mm. Width of carapace 

 7 mm. 



I quite admit the differences between C. nigricauda 

 and C. vulgaris given by Stimpson, but they do not 

 appear to me to be of specific value. 



Crangon munitellus, n. sp. PI. XVI., fig. 1. 

 Two females with ova. Length 25 mm. 



Carapace depressed and sculptured ; median carina, 

 with two teeth ; two parallel short carina on each side 

 terminating in a tooth; a curved ridge running from the 

 outer side of the outermost of these teeth to the orbital 

 margin on which is a strong tooth ; a strong tooth on the 

 branchial region. Antero-lateral angles acute. Eostruni 

 concave above, rounded at the extremity, as long as 

 the eyes. 



