BLIND PRAWN FROM THE SEA OF GALILEE. 95 



few setae. I could detect no trace of pigment or of ocular structure. The antennules 

 (fig. 2) have the stylocerite of the first segment blunt, closely applied to the side of the 

 segment, and not reaching its distal end. There are two long flagella (incomplete in both 

 specimens), the outer of which bears, at about the 52nd articulation in one specimen 

 and at the 25th in the other, a small biarticulate appendage (fig. 5) ; in other words, the 

 bifurcation of the outer flagellum is reduced to a minimum. I have been unable to detect 

 a statocyst in the basal segment of the antennule, but I am not confident that it is absent. 



The antenna (fig. 2) has a flagellum longer than the body. The scale is about two- 

 thirds as broad as long, with the spine on the outer edge a little beyond the middle of 

 its length. 



The mandibles (fig. 6) have well developed incisor and molar processes but no palp. 

 The maxillulae resemble those of Palcemon. The maxillae (fig. 7) have a very unusual 

 form ; the proximal endite is obsolete (as in Palcemon and many other Caridea) and the 

 distal endite is undivided, perhaps owing to the suppression of its proximal lobe. 



The first maxilliped (fig. 8) has the lobe of the exopodite very large and pointed. The 

 second maxilliped (fig. 9) has a large epipodite, but the podobranchia appears to be 

 represented only by a small fleshy lobe on the anterior surface of the epipodite. 



The third maxillipeds (fig. 10) are stout, and extend forwards well beyond the scales of 

 the antennas. The terminal segment is considerably longer than the penultimate. The 

 epipodite is represented by a small fleshy lobe which bears a group of yellow spines, 

 each very stout in the proximal half and tapering to a very slender tip. The first legs 

 are slender and, when extended forwards, the distal end of the merus reaches to the tip 

 of the antennal scale. The carpus is about equal to the merus and longer by one-half 

 than the chela. The fingers are nearly twice as long as the palm. 



The second legs (fig. 11) are large and subequal, and the merus extends beyond the 

 antennal scale. The carpus is about two-thirds as long as the merus. The palm is 

 inflated and slightly compressed laterally. In two of the chelae examined the palm is 

 about two-thirds as long as the fingers ; the third, which may be abnormal, has the 

 immovable finger much shorter than the dactyl us, which is about equal to the palm. 

 The fingers have a thin smooth cutting-edge, which forms a low tooth near the base of 

 each, and internally to this edge they have a series of widely-spaced teeth. The whole 

 limb is clothed with long and soft hairs. 



The walking-legs are moderately stout. The dactyli are not toothed on the lower 

 (concave) edge, but have some stout spines on the upper surface. The pleopods (fig. 12) 

 have broad protopodites, on the posterior face of each of which, near the outer edge, is a 

 patch of stout yellow spines with filiform tips. Some of these spines (fig. 13) are irregu- 

 larly thickened or distorted. In the first pair of pleopods the endopodite is about half 

 as long as the exopodite, and has near its distal end on the inner side a clavate process 

 bearing a group of coupling-hooks. In the second pair the appendix masculina is 

 shorter than the appendix interna. 



The uropods have both rami very broad and pointed, instead of rounded, distally. The 

 exopodite extends beyond the telson for half its length. The tooth on the outer margin 

 is about the middle of its length, and an oblique ridge runs inwards from it. The 



