MR. E. J. MIERS ON THE IDOXEID^. 81 



slightly rounded to the distal extremity. Length of the laro-est 

 example (a male) about j^ inch ('21 millim.). 



Ojica, Goto Island, lat. 33° 12' 30" N., long. 129° 5' E. : a male 

 and two females were collected at low-water mark. 



I am enabled to identify these specimens with the species de- 

 signated (but, I believe, not yet described) as Gleantis isopus by 

 Dr. Edward Grrube, by comparison with two examples kindly pre- 

 sented to the British Museum by that gentleman; and I gladly 

 avail myself of his specific name. Dr. Grrube's specimens are from 

 Chefoo. 



ClEANTIS LINEARIS. 



Cleantis linearis, Dana, Amer. Journ. of Sci. and Arts, (ser. 2) viii. 

 p. 4L7 (1849) ; id. U.S. Expl. Exp., Cr. ii. p. 708, pi. xlvi. fig. 9 

 (1853). 



In this species, according to Prof. Dana (from whose later 

 work the description is taken) the body is very narrow-linear, and 

 fully six times as long as wide. Head subtriangular behind and 

 obtuse, set into the following segment ; front truncate or a little 

 excavate. Thoracic segments somewhat transverse ; fourth, fifth, 

 and sixth segments longest, the fourth nearly quadrate. Post- 

 abdomen 3-jointed ; the first two segments very short, trans- 

 verse ; the third nearly twice as long as broad, having a suture 

 near the base, the sides nearly parallel, postero-lateral angles 

 truncate, apex truncate or slightly excavate. Eyes situated 

 near the angles of the head. Antennules very small, not half the 

 length of the antennae, with their basal joints rather stout; third 

 shortest, obconical ; the fourth as long as the second and third 

 together. Antennae rather stout, shorter than half the body, 

 5- to 6-joiuted, not geniculate; last four joints each oblong; 

 last joint shorter than the preceding, elongate-ovate, pubescent. 

 The epimera (in the figure) are not visible in a dorsal view. Legs 

 compressed, with the last joint the longest ; third pair twice as 

 long as the first ; fourth pair very much shorter than the third ; 

 the last four pairs gradually increase in length. Claw with a 

 short spine beneath the apex. Colourless when obtained. Length 

 9 or 10 lines. 



N. Patagonia, Hio Negro (from the stomach of a Silurus). 



I have seen no specimens. 



The Idotea angustata of Nicolet (Crust, in Gay's Chile, Zool. 

 iii. p. 258, pi. iii. fig. 4, 1849) has the body narrow and elongated ; 



LINN. JOUEN. — ZOOLOGY, YOL, XVI. 6 



