The Echinoderm Fauna of South Africa. 413 



southern Natal. The specimens at hand range from 22 to 57 mm. 

 in length ; the larger individuals are quite stout, the diameter equall- 

 ing half the length or more; all are strongly contracted. While 

 most of the specimens still retain more or less of the characteristic 

 black colouration, some are not at all black ; the lot from East 

 London is a uniformly light brown. The absence of deposits in the 

 outer layer of skin and the lack of terminal plates in the pedicels 

 are noticeable features of this species. 



P.F. 918. 1 mile east of Cove Rock, East London, low tide. 

 9 specimens ; adult. 



Natal: Port Shepstone and Scottsburgh. K. H. Barnard coll. 6 

 specimens; adult and young. 



Natal: Umhlali. K. H. Barnard coll. 2 specimens: adult. 



Cape Colony: Port Elizabeth. 2 specimens; adult. 



Locality unknown. 10 specimens; adult and young. 



*CUCUMARIA JAGERI. 



Lampert, 1885. Die Seewalzen, p. 249. 



This species seems to me to be very near the preceding but as 

 there are no specimens at hand which I can refer to it, it is best 

 to let the species stand as Lampert left it. The differences between 

 jageri and sykion in their calcareous particles is hard to understand 

 (and Lampert gives no figures) while the differences in the distribu- 

 tion of the pedicels are of doubtful importance. 



CUCUMARIA FRAUENFELDI. 



Ludwig, 1882. Notes from Leyden Mus., vol. IV, p. 130. 



This species has hitherto been inadequately described or at least, 

 the descriptions are quite unsatisfactory. Ludwig gives no des- 

 cription, simply referring to Semper's notes on, and figures of, an 

 unnamed species. Lampert, three years later, ignorant apparently 

 of Ludwig's work, gave the same species another name (postltuma) 

 and added some useful notes on the morphology, but neither he 

 nor Britten (1910, Schultze's Zool. Anthrop. Erg. Forsch Si'idafrika, 

 vol. 4, pt. 1, p. 239) have given a clear statement as to the cal- 

 careous particles. I have had one of Britten's specimens for com- 

 parison with those in the collection of the South African Museum. 



The calcareous particles in this species are remarkably charac- 

 teristic. They consist altogether of rods but there are two very 

 distinct sorts of these rods. In the outer layer of the skin the 



27 



