33 



1884. Sigdiion Ichimv, V. Cams. Faun. Medit., p. 205. 



1888. Sfheiiclais Idiiiia, De St. Joseph. Ann. d. sc. nat. (7), 



v., p. 187, PI. viii., f. 55. 

 1890. Signlioii IdiiiKv, Malaquin. Ann. Boulon., p. 23. 

 1900. Stiieiiclais boa, Mcintosh. Brit. Ann. II. (Ray Soc), 



p. 409, Pis. xxvi., f. 7 and 8 ; xxvi<7. f. 21 and 22 ; 



xxix., f. I ; xxxi., f. 5 ; xxxiii., f. 16 ; xli., f. 19 — 23. 



Procured between tide marks at St. James' and False Bay, 

 19th July, 1901, and 25th June, 1902, the former being the 

 larger. A few about 60-90 mm. in length have a breadth, 

 over the bristles at the widest part, of 5-7 mm. 



The head is somewhat shield-shaped, broad in front and 

 narrower behind, with two eyes in front, one on each side of 

 the ceratophore of the median tentacle. Another pair lie in 

 front on the anterior border, and thus are not readily seen from 

 the dorsum. The median tentacle is comparatively short and 

 subulate in outline. A ctenidium occurs at each side of its 

 base. At the posterior border of the head is on each side a 

 truncated papilla. The structure of the first feet, which occupy 

 the usual position in front, and that of the palpi is typical, a 

 large ctenoidal flap ensheathing the inner base of the latter — 

 which are long tapering organs. 



The body is a little diminished in front, remains for some 

 distance of nearly equal breadth, and then diminishes gradually 

 towards the tail which bears two slender cirri of moderate 

 length. The dorsum is mottled with the touches of pigment on 

 the numerous scales, which have, in those best marked anteriorly, 

 a madder-brown crescent behind the scar, joined by a process 

 which runs into another crescent just within the upper and 

 posterior border of the scale. In passing backward, however, 

 various additional pigment-touches appear, so that the pattern 

 becomes more complex, some presenting three spurs from the 

 anterior to the posterior crescent, besides a broader spur beneath. 



In structure they appear to agree in the closest manner with 

 Sthendais boa, Johnston, in regard to outline, papilla? and cilia. 



The typical foot likewise corresponds with the European 

 form in every minute detail. 



It is noteworthy to find a variety of the well-known British 

 species frequenting the shores of South Africa, and which does 

 not in any essential feature differ from it. The wide range of 

 the species, however, makes this less remarkable, for it not only 

 frequents the shores of Norway but stretches far southward 

 along the western shores of Europe and into the African section 

 of the Atlantic at Madeira.''' A closely allied, if not identical 

 form occurs at Bermuda.! 



■■' Lan.uerhans, Zeit. f.w. Zool., Bel. xxxiii., p. 276, tiu". 6. 

 t Trans. Conn. Acad, x., p. 666, ujoo. 



C 



