158 
A few remarks should be added to the description given by 
Koehler and also a pair of figures may not be superfluous, those 
given by Koehler being slightly diagrammatic. 
The largest of the speciméns in hånd measures 4 mm dia¬ 
meter of disk, the arms being scarcely three times so long as the 
diameter of disk. As stated by Koehler, the primary plates are 
not distinet. It is a noteworthy faet that also in the very young 
speeimens they are indistinet. There arc some larger plates in the 
eentre, it is true, but they are not regularly arranged in the shape 
Fig. 28. Aniphioplus basilicus Keehler. — a. Part of oral side ; b. of dorsal side; 
c. two armjomts from middle of arm, dorsal side. ^®/i. 
of a rosette eonsisting of one eentral plate and five radially plaeed 
plates, as it is usually seen in very young Ophiurids. 
A very interesting feature is ofFered by the genital slits, whieh 
are very short, not reaehing beyond the first armjoint. This is in 
eontradietion with Koehler’s figure, in whieh they are represented 
as large s'its, reaehing to the edge of the disk. In the text Koeh¬ 
ler only says that the genital slits are narrow, without giving any 
statement about their length. In view of the otherwise perfeet agree- 
ment of my speeimens with Koehler’s deseription of this speeies 
I eould not but suppose the said figure to be erroneous in this 
regard and therefore asked Professor L. Joubin at the Muséum 
d’hist. naturelle. Paris, to lend me one of Koehler’s speeimens 
for reexamination, whieh he very kindly did. My suggestion proved 
to be perfeetly justified; the genital slits were found to be quite 
narrow and small as in my own speeimens. 
