PLATE XXI. (Crustacea, Plate LXXXV.) 



Alpheus notabilis, n. sp. 

 l.i. Lower lip. 



m. Mandible. 



prp. 1. The last three joints of one of the first pair of peraeopods. 



prp. 3. The last four joints of the third peraeopod. 



prp. 5. The last five joints oE the fifth peraeopod. 



urp. One of the uropods. 



T. The telson. 



