42 
TH. MORTENSEN 
(Schwed. Südpolar-Exp. 
Sterechinus Neumayeri (MEISSNER). 
PI. VI. Figs. 7—8. PI. VII. Figs. 1—2, 4. 
Sterechinus Neumayeri. Th. Mortensen. 190g. Echinoiden der deutschen Siidpolar-Expedition p. 64. 
— R. Koehler. 1908. Astéries, Ophiures et Echinides de l'Expédition antarctique 
nationale Ecossaise. 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' W., Graham Region, S. E. of Seymour Isl. 150 m.). 
Several specimens. 
* 8 (64° 3' S. 
56° 37' W., Graham 
Region. 
360 
m.?). 
I 
specimen, 
» 20 (54° 12' S. 
36" 50' W., South 
Georgia. 
250 
» )• 
I 
» 
» 22 (54 0 17' S. 
36° 28' W., » 
» 
75 
» )• 
i 
» 
» 25 (54 0 22' S. 
36° 27' W., 
» 24- 
-52 
» )• 
6 
» 
» 26 (54° 22' S. 
36° 27' w., » 
» 
30 
» ). 
i 
» 
The bottom on these different stations varies considerably, from stony bottom 
covered with algæ to sandy or even clayey bottom. 
Sterechinus Agassizii nom. nov. 
PI. VI Figs. 9—12. PI. VII Fig. 3. PI. XVI Figs. 1, 7—8, 13, 15, 18. 
Echinus margaritaceus. A. Agassiz. 1872. Revision of Echini p. 124, 493. 
1874. Zoological Results of the Hassler Expedition. Echini (Illustr. 
Cat. Mus. Comp. Zool. No. VIII) p. 11. PI. II Fig. 6. 
— M. Meissner. 1900. Echinoiden d. Hamburger Magalh. Sammelreise p. II. 
Sterechinus — Th. Mortensen. 1903. »Ingolf» Echinoidea. I. p. 177 — 17S. Note. 
Echinus — De Loriol. 1904. Notes pour servir à l’étude des Ëchinodermes. 2 Ser. II. p. 16. 
Sterechinus — L. Doderlein. 1907. Echinoiden d. deutschen Tiefsee-Expedition p. 219, 224. 
Taf. XXIX, Fig. i. Taf. XXXV, Fig. 12. Taf. XLVII, Fig. 9. 
— — R. Koehler. 1908. Astéries, Ophiures et Échinides de l’Expédition antarctique 
nationale écossaise. Trans. R. Soc. Edinb. XLVI p. 617. 
? Echinus 
— P'. Jeffr. Bell. 
1902. 
Echinoderma. 
Southern Cross p. 219. 
5 
— — 
190S. 
Echinoderma 
p. 6. National Antarctic Expedition. 
Na- 
tural History. 
IV. Zoology. 
Non: Echinus 
margaritaceus. Lamarck. 
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. 
