HOLOTHURIOIDEA, ASTEROIDEA, AND ECHINOIDEA 387 
Ophidiaster Agassizii Ed, Perr. 
Literature. 
1. 1881. Ep. Perrier: Description sommaire des espéces nouvelles d’Astéries. 
Bull. of Mus. comp. Zool.» Vol. IX. No. 2. Pag. r1. 
2. 1884. Ep. Perrier: Mémoire sur les Etoiles de Mer recueillies dans la Mer 
des Antilles et le Golfe du Mexique. Pag. 223. 
3. 1896. M. Meissner: Die von Herrn Dr. L. Plate aus Chile und Feuerland 
heimgebrachten See-Sterne. Arch. f. Naturgeschichte. Bd. 1. H. 2. Pag. gg. 
4. 1900. P. DE Loriot: Notes pour servir a l’étude des Echinodermes. VIII. 
Revue Suisse de Zoologie. T. 8. Pag. 79. 
This species is represented by 5 specimens. 
2 specimens collected by C. SKOTTSBERG (Swedish Magellan Expedition 
1907—09): 
MASATIERRA, St. 37. (74/s 1908), 20 fathoms, sand and stones R. 36 r. 7 
(alc.). 
> Bahia del Padre St. 39. (?°/s 1908), litoral R. 34 r. 8 (alc.) 
3 specimens, collected at the same island 1916—17 by K. BACKSTROM: 
Reger. 5 (dried). 
R Serr .250 (dried. 
R. 56 r. 9 (dried). 
The specimens in question all agree with PERRIER’s (1) description, even 
if the number of »pores tentaculaires», given by him, does not quite correspond 
with that of the specimens from Juan Fernandez. The number seems to be 
smaller — the pedicellaries, on the contrary, appear to be more numerous 
than recorded by PERRIER. Whether this is due to the specimens examined 
by me being smaller than those examined by PERRIER (R= 70 mm., r 10 
mm.) cannot be settled, because the material is too small in number to enable 
us to decide how far these differences in structure correspond to the size of 
the specimens. 
Asterias fernandensis Meiss. 
Literature. 
1896. M. Meissner: Die von Herrn Dr. L. Plate aus Chile und Feuerland 
heimgebrachten See-Sterne. Pag. 104. ‘Taf. VI. Fig. 1. 
1904. P. pe Loriot: Notes pour servir a l’étude des Echinodermes. Seconde 
série. Fascicule II, pag. 41. Planche III (6). Fig. 4—8. 
Of this species there are only 2 specimens in the collection (K. BACK- 
STROM). 
MASATIERRA, 20—35 m., calcareous algae, °/3 1917. 
2R 14mm. 4 R08 mm. r 5 mm. 
> 20-35 m., sand with calcareous algae, **/4 1917. 
2R 6mm, R § mm R' 2mm. K ijgamal ais 
