On the Names or Existence of three Evotic Star fishes. 25 
b. The absence of a flagellum. 
c. The form of the penis and vas deferens. 
There are few anatomical points which connect either of the 
above species with 7. haliotidea, and there are no grounds 
whatever for retaining 7’. scutulum as a variety of T. halio- 
tidea. 
The generative systems of TZ. bisulcata, Risso, and 
T. Pecchiolit, Bourg.*, have been compared with those of all 
the above three species, and they agree very closely with 
T. scutulum, of which both are probably varieties; but a 
further investigation of their general anatomy is desirable 
before finally classing them as such. 
ref 
EXPLANATION OF PLATE T. 
Fig. 1. Testacella haliotidea, Dray. 
Fig, 2. Testacella scutulum, Sowerby. 
Fig. 3. Testacella Maugei, Fér. 
Fig. 4. Testacella haliotidea, Drap. Variation in the form of the penis, 
alb.g. Albumen gland, pr.m. Penal retractor muscle. 
Ji. Flagellum. r.d. Receptacular duct. 
h.d. Uermaphrodite duct. r,s. Receptaculum seminis. 
hg. Wermaphrodite gland. v. Vestibule. 
ov. Oviduct. v.d. Vas deferens. 
p. Penis. vg. Vagina. 
pr. Prostate. 
IV.— On the Names or Existence of three Exotic Starfishes. 
By F. Jerrrey Bet, M.A. 
I Hope the following notes will be found to be of some 
assistance in the systematic nomenclature of Asteroidea. 
“Asterina marginata (Val.), Perrier.” 
The species referred to thus in the ‘ Challenger’ Report of 
Asteroidea should be called A. ste/iifer, Mobius. So far as 
Valenciennes is concerned he only wrote a manuscript label 
for the Museum in the Jardin des Plantes. Hupé, in 1857, 
printed the name in vol. ili. (Mollusques) p. 100 of the Exp. 
de VAmér. du Sud, but it is a nomen nudum. In 1859 
Mébius, in the Abh. Geb. Naturw. Hamburg, iv. 2, p. 4, 
described Asteriscus stellifer, and, in 1860, Liitken (Vid. 
* Boll. Mus. Zool. Torino, 1888, vol. iii. no, 43, pp. 1-10, 1 pl. 
