176 Records of the Indian Museum. [Voi,. XXIV, 



The specimens were caught in Brigade Creek in a net hauled 

 over a bottom composed of decaying vegetation at a depth of 2-5 

 fathoms. 



Periclimenes (Ancylocaris) calmani Tattersall. 



1921. Periclimenes calmani, Tattersall, Journ. Linn. Soc, Zool. 

 XXXIV, p. 385, pi. xxvii, fig. 11 ; pi. xxviii, figs. 14-15. 



The characters given for this species in the key on p. 169 are 

 not all included in the description referred to above. Dr. Tatter- 

 sall has, however, kindly informed me that the spine at the distal 

 end of the antennal scale reaches to or very slightly beyond the 

 apex of the lamella and that the dactylus of the last three peraeo- 

 pods is simple. As in P. leptopus the dactylus of these limbs is 

 very long, about two-fifths the length of the propodus. 



The species was described by Tattersall from the Sudan coast. 



Periclimenes (Ancylocaris) seychellensis, Borradaile. 

 (Plate VI, fig. 7.) 



1915. Periclimenes (Falciger) seychellensis, Borradaile, Ann. Mag. Nat. 



Hist. (8) XV, p. 212. 

 1917. Periclimenes (Falciger) seychellensis, Borradaile. Trans. Linn. 



Soc. (2) Zool. p. 375, pis. liv, lv, figs. 14 a-4. 



The rostrum reaches to, or a little beyond the apex of the 

 antennal scale and is deep in lateral view with a concave upper 

 border. Dorsally it bears from 7 to 9 teeth,' usually 8. The two 

 hindmost teeth are situated on the carapace behind the orbit and 

 are separated by a rather wide interval, the first being only a little 

 in advance of the middle of the carapace. On the lower border 

 there are from 2 to 5 teeth, 2 usually 3 or 4. The foremost teeth, 

 both dorsally and ventrally, are placed close to the tip. 



The supra-orbital spine is absent ; the hepatic is present and is 

 situated on a lower level than the antennal. 



The eyes are rather slender, with hemispherical cornea. On 

 the upper and anterior aspect of the stalk there is a small conical 

 papilla, situated close to the cornea but separated from it by a 

 shallow excavation. The development of the papilla is a little 

 variable ; as a rule it is quite conspicuous (text -fig. 34«), occasion- 

 ally it is small and rarely it is almost indistinguishable, though 

 the excavation is always distinctly seen when the eye is viewed 

 from the proper angle. The ocular spot touches the cornea and 

 is large. The cornea itself is traversed by two parallel wavy 

 bands of dark pigment which are conspicuous in life and can often 

 be detected in well preserved specimens. 



1 Of sixty specimens seven have 7 dorsal teeth, forty have 8 and thirteen 

 have 9. 



2 Of sixty specimens one has 2 ventral teeth, nineteen have 3, thirty-four 

 have 4 and six have 5. 



