Canon A. M. Norman on Cucumaria Montagul. 359 



C to tlie Vienna Museum as C. Montagui, for I had only one 

 adult example in my collection, and therefore Marenzeller's 

 writing's refer to these younger stages, and not to the adult. 



Koehler states that he had received a specimen from 

 Plymouth under the name " G. pentactes" ; this he rightly 

 referred to C. Montagui, but he would have been more correct 

 had he written the young of G. Montagui. 



Gucumaria Montagui^ Fleming. 



1808. Holothuria pentactes, Vcar., Montagu, Liun. Trans, vol. ix. p. 112, 



pi. vii. fig. 4. 

 1828. Holothuria Montcujui, Fleming, Plist. Brit. Anim. p. 483. 

 1848. Pentacta Montagui, J. E. Gray, List Brit. Animals in B.M. pt. i. 



Centrouiae, or Radiated Animal.s, p. 11. 

 1893. Cucumaria Montagui, Normau, Ann. & Mag. Nat. Hist. ser. (5, 



vol. xii. p. 469. 

 1904. Cucumaria Noruiani, Pace, Jouru. Marine Biol. Assoc, vol. vii. 



p. 305, 



The Young. 

 1848. Holothuria decollata, Leach, MS. name only, J. E. Gray, under 



Pentacta Montagui as above referred to. 

 1883. Holothuria' d€collata=C. Montagui, BeW, 3 onvn. R. Micr. Soc. 



ser. 2, vol. iii. p. 3 (separate copy), pi. viii. figs. 4, 4 a. 

 1893. Cucumaria Montagui, specimeus B and C, Norman, I. c. 

 1893. Cucumaria Montagui, Marenzeller, Resultats Camp, sclent. 



Prince de Monaco, Contrib. a Tfitude desHolothuriesde I'Atlantique 



Nord, p. 15, and Ann. & Mag. Nat. Hist. ser. 6, vol. xii. p. 335. 

 1904. Cucumaria saxicola, Pace {nee Brady and Robertson), /. c. 



Of synonyms which I gave in my former paper, Semperia 

 Drummondii, Herouard (nee Thompson), has spicules exactly 

 like those of adult C Montagui-, but G. Lefevrei, Bonnier, is 

 stated by Koehler not to have the feet arranged as in Colo- 

 chirm, and therefore to be different from C. Montagui, and 

 Marenzeller has made it a synonym of C. Koellikeri. I may 

 add that Marenzeller refers Colochirus Lacazei, Herouard, as 

 a synonym to G. Montagui ; but I do not think that this can 

 possibly be tlie case if fig. 8 of Herouard correctly represents 

 one of the upper layer of spicules, and, moreover, there seems 

 to be considerable difference in other spicules also. 



EXPLANATION OF PLATE XL 

 Fig. 1. Cucumaria Montagui (Fleming). Spicules of the lower layer of 



the adult, a, b, c being the normal forms. 

 Fig. 2. Ditto. Spicules of sides of feet. 

 P^ig. 3. Ditto. Spicules of tentacula. 



Fig: 4. Ditto. Campanulifonu spicules of upper layer of dermis. 

 Fig. 5. Ditto. Immature " B and C," slightly enlarged. 

 P'ig. 6. Ditto. Dermal spicules : a, b,f,g,h, i, k, primary spicules cliarac- 



teristic of the young; c, d, e, secondary spicules characteristic of 



the adult layer. 

 Fig. 7. Ditto. Spicules of the feet. 



