422 MK. J. K. HENDERSON— A CONTRIBUTION 



The largest specimen, a female with ova, is about 20 mm. long ; the chelipedes cannot 

 be fully straightened, but measured from below the left is 8-3 mm. Ions', and the rio-ht 

 7 mm. ; the first ambulatory leg is 11 mm. long. 



Of about thirty specimens the majority are females carrying eggs, and many are 

 considerably smaller than the above. Mr. Thurston informed me that the species lived 

 in minute cavities in coral. 



Genus Anictjltjs, Dana. 



223. Aniculus aniculus (Fabr.). 



Pagurus aniculus (Fabr.), Mihie-Edwards, Hist. Nat. Crust, t. ii. p. 230 (1837). 

 Aniculus lypicus, Daua, Crust. U.S. Explor. Exped. pt. i. p. J'Gl, pi. xxix. fig. 1 (1852). 



Tuticorin and Muttuwartu Par ( Thurston). 



In addition to the transverse strigose lines on the chelipedes and ambulatory legs, 

 many long marginal hairs are present, especially on the upper margin of the hands 

 and on the ambulatory dactyli. The eye-stalks are slightly constricted towards the 

 middle. The ophthalmic scales are somewhat approximate, and each ends in a single 

 acute spinule. The rostral projection is separated by a distinct transverse groove from 

 the rest of the carapace, and, as pointed out by Dana, the median areolet of the anterior 

 portion of the carapace is distinctly defined, and fusiform in shape. Long hairs are 

 present at the sides of the carapace, on the antennal and antennular peduncles, and even 

 on the eye-stalks. 



Distribntioit. Erom E. Africa to Japan, Australia, and the Pacific (Wake Is., Pauraotu 

 Is., Samoa, Fijis, New Zealand, &c.). 



224. Aniculus strigatus (Herbst). 



Cancer strigatus, Herbst, Naturges. Krabben u. Krebse, Bd. iii. Ileft 4, p. 2o, tab. Ixi. fig. 3 (1804). 

 Pagurus strigatus, Hilgendorf, Monatsb. Akad. Wiss. Berlin, p. «.20, Taf. ii. fig. 8 (1878) ; Ortmaun, 

 Zool. Jahrb. Bd. vi. Abtli. f. Syst. p. 285 (1892). 



Tuticorin, two specimens (Thurston). 



This species evidently lives in shells with a narrow aperture — probably in Cones — and 

 its body has, in consequence, undergone great flattening. It is distinguished from 

 A. typicus by the absence of long hairs from the chelipedes and legs, its front is obtuse, 

 the apex of the ophthalmic scales is bidentate, and tlie general form and colour are 

 difi'erent. The colour when fresh is very brilliant, the ground tint a deep red becoming 

 orange in spirit, with the legs and chelipedes encircled by blue lines which soon fade 

 and disappear. Herbst's figure gives a fair idea of the form, and colour in a faded 

 specimen. 



This species, along with three others belonging to different genera of Paguridte, one 

 of which has already been referred to in this paper, illustrates a remarkable modification 

 in the body-form of these hermit-crabs, brought about by a habit which has become 

 constant, of the species selecting a shell with a narrow elongated mouth or aperture. 



