42 



TH. MORTENSEN, 



(Schwed. Südpolar-Exp. 



Sterechinus Neumayeri (MEISSNER). 



PI. VI. Figs. 7—8. PI. VII. Figs. 1—2, 4. 



Sterechinus Neumayeri. Th. Mortensen. 1909. Echinoiden der deutschen Siidpolar-Expedition p. 64. 

 — — K. KoEHLER. 1908. Astéries, Ophiures et Échinides de l'Expédition antarctique 



nationale Écossaise. Trans. R. Soc. Edinb. XLVI p. 616. PI. XVI. 143 — 144. 



This species has been carefully treated in my work on the Echinoidea of the 

 German South Polar Expedition, the material from the present Expedition being also 

 taken into consideration there, in order to avoid unnecessary splitting up of the 

 description into two parts. Only the figures from the material of the Swedish Ex- 

 pedition are preserved for this work; for the description reference must be made to 

 the work quoted, in which also the whole literature on this subject is recorded. 



The species was taken at the following stations: 

 Station 5 (64° 20' S. 56" 38' \\'., Graham Region, S. E. of Seymour Isl. 150 m.). 

 Several specimens. 

 » 8 (64' 3' S. 56° 37' \V., Graham Region. 360 m.?). i specimen. 

 » 20 (54' 12' S. 36' so' W'.. South Georgia. 250 » ). i » 



» 22 (54' 17' S. 36° 28' \V., . » 75 » )• I >• 



» 25 (54° 22' S. 36' 27' \V., » » 24 — 52 » ). 6 » 



> 26 (54' 22' S. 36° 27' \V., » » 30 » ). I » 



The bottom on these different stations varies considerably, from stony bottom 

 covered with alga; to sandy or even clayey bottom. 



Sterechinus Agassizii nom. nov. 



PI. VI Figs. 9—12. PI. VII Fig. 3. PI. .MVI Figs. 1. 7—8. 13. 15. iS. 



Echinus margarilaccus. A. .'^G.xssiz. 1S72. Revision of Echini p. 124. 493. 



— — — 1874. Zoological Results of the Hassler Expedition. Echini (lUustr. 



Cat. Mus. Comp. Zool. No. VIII) p. 11. PI. II Fig. 6. 



— — M. Meissner. 1900. Echinoiden d. Hamburger Magalh. Sammelreise p. 11. 

 Th. Mortensen. 1903. »Ingolf» Echinoidea. I. p. 177 — 178. Note. 

 De Loriol. 1904. Notes pour servir à l'étude des Échinodermes. 2 Ser. II. p. 16. 



— L. DoDERLElx. 1907. Echinoiden d. deutschen Tiefsee-Expedition p. 219, 224. 

 Taf. XXIX, Fig. I. Taf. XXXV, Fig. 12. Taf. XLVII, Fig. 9. 



— R. Koehler. 190S. .\stéries. Ophiures et Échinides de l'Expédition antarctique 

 nationale écossaise. Trans. R. Soc. Edinb. XLVI p. 617- 



— F\ Jeffr. Bell. 1902. Echinodemia. Southern Cross p. 219. 



— — 190S. Echinoderma p. 6. National Antarctic Expedition. Na- 



tural History. IV. Zoology. 

 Non: Echinus margarilaceus. L.\M.\RCK. 1816. Animaux sans vertèbres. III. p. 47. 



— — Blainville. 1825. Dictionnaire des Sciences naturelles. Vol. 37 p. 78. 



— — Valenciennes. 1846. Voyage de la Frégate Vénus. Zoophytes. PI. VI. 



Sterechinus 



Echinus 



Sterechinus 



? Echinus 



■> — 



