C A R I D E A. 533 



G. 2. SABINEA, Owen.* Rostrum brevissimum. Oculi liberi. Pedes 2di chelis 



carentes; 4ti 5tique acuminati, gressorii. 

 G. 3. ARGIS, Kmycr.^ Rostrum nullum. Oculi sub carapace fere occulti. Pedes 



2di chelis armati. 

 G. 4. PARACRANGON, Dana. Rostrum elongatum. Oculi liberi. Pedes 2di ob- 



soleti, 4ti 5tique acuminati, gressorii. 



SUBFAM. 2. LYSMATTN^E. Pedes Imi 2dis crassiores. Maxilli- 

 pedes extern! pediformes. Digiti subaequi uno ad alterum claudente. 

 Pedes 2di annulati. 



G. 1. NIKA, Risso. Rostrum breve. Antennas internae duobus flagellis confectas. 



Pedes antici itupares, uno chelato, altero monodactylo. Carpus paris 2di elon- 



gatus, annulatus. 

 G. 2. LYSMATA, Risso. Rostrum elongatum, subensiforme. Antennae internas 



tribus flagellis confectse. Pedes antici ambo chelati. Carpus paris 2di elongate 



filiforniis. 

 G. 3. CYCLORHYNCIIUS, De ffaan.% Rostrum sat breve, compressum et suborbicu- 



lare. Carpus 2dus brevis, pauci-annulatus. 



SUBFAM. 3. GNATHOPHYLLIN^E. -- Pedes 2di Imis crassiores. 

 Maxillipedes extern! lati, operculiformes. 



G. 1. GNATiiopnrLLUM, Latreille. 



FAM. II. ATYID^E. 

 SUBFAM. 1. ATYIN7E. Pedes thoracic! palpo non instruct!. 



G. 1. ATYA, Leach. Rostrum breve, depressum. Antennas internas flagellis 

 duobus confeetas. Pedes 4 antici sat breves, carpis sublunatis, cuspide inferiore 

 manum ferente, digitis penecillo setarum longo ad apicem armatis; 3tii 5tis 

 multo longiores et crassiores. 



G. 2. ATYOIDA, Randatt.\\ Rostro, antennis pedibusque anticis Atyce affinis. Pedis 

 3tii tenues, 5tis breviores. [An distinctio valida?] 



G. 3. CARIDINA, Edwards. Rostrum sat breve sat longum. Antennae internas 

 flagellis duobus confectas. Pedes 2di Imis longiores, digitis parium amborum 



* Owen, Append. Voy. Capt. Ross, p. 82. Crangon septemcarmatum, Sabine. 



f Tidskrift, iv. 1843, p. 217. 



J Faun. Japon. Crust., p. 174. 



In a paper on new species of Atya, by G. Newport, in the Ann. Mag. Nat. Hist., 

 xix. (1847), 158, a species is attributed to Apia, Upolu, in New Zealand. Apia is on 

 the Island of Upolu, which is one of the Navigator or Samoan Group, in the Pacific. 



|| Journ. Acad. Nat. Sci. Philad., viii. p. 140. 



134 



