66 Addison E. Verrlll, 



referred to that species by them are now known to be distinct 

 species. Other species were also confused by them. 



Analytical Table- of Bermuda species of Alphcus. 

 A. Large chela twisted or else notched on both upper and under margins. 



B. Dactyl of large chela moving very obliquely; palm twisted, deeply 

 grooved ; with a distal lateral spine. Antennal scale longer than 

 peduncle of antennule ; basal antennular spine extends to second 

 segment. Orbital lobes with a small spine ; rostrum small ; dactyls 

 of third to fifth feet biunguiculate candei, Subgenus Dicncsia. 



BB. Chela notched above and below, not twisted. Dactyl moving verti- 

 cally or nearly so. Orbital lobe rounded or obtuse with no spine. 

 Basal antennal spine minute or lacking. 



C. Legs of third and fourth pairs are unusually stout and wide, with a 

 distal spine on the merus and carpal joints and a sharp spine on the 

 ischium ; tip of dactyl of large chela purple or blue bahamcnsis. 



CC. Legs of third and fourth pairs not unusually stout ; tip of dactyl of 

 large chela white or pale yellow. 



d. Rostrum narrow lanceolate, thin and concave above, in the middle, 

 bordered by deep abrupt sulci. Large chela rough haired and without 

 an inner, supermarginal, longitudinal sulcus ; smaller chela of male 

 plain, very hairy; dactyl not crested laterally. armillatus=lancirostris. 



dd. Rostrum small, regularly tapered, spiniform, not concave above. 

 Large chela with an inner supermarginal sulcus ; smaller chela of the 

 male swollen and wider distally, and with curved, lateral, longitudinal, 

 hairy crest and groove on each side of dactyl lictcrochcclis. 



AA. Larger chela without a notch or with one only on the upper margin. 



C. Chela with a narrow notch and tooth on the upper distal margin, with 

 a groove running back from the notch ,on each side. Rostrum small. 



e. Orbital lobe with a small obtuse tooth in front ; rostrum slender, 

 carinate ; basal antennal spine strong. Dactyl of large chela strong, 

 more than one fourth the length of palm packardii. 



ee. Orbital lobe evenly convex with no tooth ; rostrum small, triquetral ; 

 basal antennal spine small and slender. Dactyl of large chela small, 

 feeble, about one fourth the length of palm, which is elongated and 

 much tapered, about three times as long as high. Legs of second 

 pair very long and slender. Antennae much longer than body ; third 

 maxilliped with third article foliate on one side be ami, n. sp. 



CC. Larger chela without a notch on either margin. 



D. Palm of larger chela without a longitudinal groove on either side 



distally. 

 f. Rostrum spiniform, well developed; orbital spine small or absent; 



basal antennal spine small or lacking; supero-lateral area of larger 



