1896.] J. n. Rcndevaon — Some " Investigator" Pagnridai. MO 



Calcinus tibicen, Dana, Crust. U. S. Explor. Expod. pt. i p. 457 (1852). 

 Calcinus hcrhsH, do Man, Arch. f. Niiturg Jahrg. 53, Bd. i. p. 437 (1887) 

 Ortmann, Zoolog. Jahrbucher, Bd VI. Abth. f. Syst. p. 292 (1892) uhi nynon. 



Suhelipar, Laccadives : a male about 25 mm. in total length. 



Great Sober Island, Trincomalee Harbour ; a female about 20 mm. 

 long. 



The chelipeds are dark brown in colour, with the exception of the 

 fingers and outer surface of th.e palm in the left or larger chela, and the 

 finger-tips of the right chela, all of which are white. The Second and 

 third pair of walking-legs are orange with white dactyli, the latter 

 having each a small orange band near the tip ; there is also a faint red 

 longitudinal band on the outer or posterior surface of the meral and 

 carpal joints. The eye-stalks are orange with a broad white basal band. 



The species is common and widely spread over the coral region 

 of tlie Indo- Pacific area, from Natal and East Africa, to the Sandwich 

 Islands, and the islands of the Pacific generally. It is recorded from 

 the Maldives by Ortmann. 



3. Calcinus elegans (Milne Edwards). 



Pagurus elegans, Milne Edwards, Ann. Sci. Nat. (2) t. vi. p 278 (1836) ; Hist. 

 Nat. Crust, t. ii, p. 229, pi. xiii. fig. 2 (1837). 



Calcinus elegans, Dana, Crust. U. S. Explor. Exped. pt. i. p. 458, pi. xxviii, fig. 

 10 (1852); Ortmann. Zoolog. Jahrbucher, Bd. vi. Abth. f. Sjst. p. 294(1892) 

 uhi synon. 



Suhelipar, Laccadives ; two males. 



The larger specimen which measuies about 40 mm. in length, lias 

 the left or larger chela dark olive-green in colour. The second and 

 third pairs of ambulatory legs are blue, with purple-black bands on 

 the meral, carpal, and propodal joints, while the dactyli are similarly 

 spotted. The eye-stalks are blue, the antennal peduncles and flagella 



orange. 



The second specimen measuring about 33 mm. in lengtli, has the 

 left chela orange brown. The ambulatory legs are white with crim.son 

 bands, and similar spots on the dactyli. The eye-stalks are whife with 

 a bluish tinge, the antennae orange. According to Dana the colouring 

 is as follows :— " Hands bright green except white tubercles, antennae 

 orange, eyes blue. Second and third pairs of legs banded with velvet 

 black and bright blue, hairs of tarsus carmine." Tiie colour differences 

 in the two specimens may be partly due to greater fading in the second, 

 but not entirely so There is evidently considerable colour varjatioii. 



This species like the last, extends from Natal and East Africa to 

 the Pacific, but is evidently less common than C. hcrbsfi. 



