596 LEO CEEDINGS: Gb THE NA TIONAL MUSEUM. VOL. XXXIV. 
Tsocrinus L. Agassiz, 1836. 
1836. L. Agassiz, Mém. de Soc. d. Sci. Nat. de Neuchatel, I, 
p- 199. 
LType.—tsocrinus pendulus von Meyer, 1837. 
ioos=equal-+ Kpir ov=lily. 
Isocrinus is equivalent to Pentacrinus as used by Dr. P. H. 
Carpenter and most other writers on recent crinoids, as was 
ably pointed out by Mr. F. A. Bather (Natural Science, XII, 
April, 1898, p. 245). He eredits /socrinus to von Meyer, 1837 
(see beyond); but in the previous year Professor Agassiz de- 
scribed the genus, naming /socrinus pendulus von Meyer as the 
type. Clearly, he had no intention of anticipating von Meyer, 
but the fact remains that he did, so we have no alternative and 
must accept the genus from him. 
+ Isocrinus pendulus von Mryrr, 1837. 
1835. pe Meyer, L’Institut, December 30, 1835, p. ee ([so- 
crinites niet 
A nomen nudum. 
1837. von Mryer, Mus. Senckenb., IT, p. 260, a xvi, figs. 1-5. 
Heinle ones 
Isocrinus sibogae DoOpERLEIN, 1907. 
1907. DéprERLEIN, Die gestieten Crinoiden der Siboga-Expedition, 
p. 18, pl. mx, fio. 1; pl. xim; fie. 12; first mentioned, pp. 2: 
Type-locality.—10° 39’ south latitude, 123° 40’ east longitude 
(near Timor) ; 520 meters. Dutch S. 8. Siboga. 
Dutch 8.8. Szboga. 
Isometra A. H. Ciarx, 1908. 
1908. A. H. Cuarx, Proc. Biol. Soc. Washington, X XI, p. 133. 
Type.—Antedon lineata P. FH. oS 1888 (not Antedon 
lineatus Pomel, 1887). 
toos=like+ metra. 
Kallispongia Wricut, 1877. 
1877. Wricurt, Proc. Roy. Irish Acad., 2d ser., I1,p. 754, pl. xu. 
Type.—K allispongia archert Wright (n. sp.). 
Kali 0s=beautiful+ ozoyyia=a sponge. 
Kallispongia archeri Wrigut, 1577. 
1877. Wricut, Proc. Roy. Irish Acad., 2d ser., II, p. 754, pl xt. 
Type-locality.—Australia. 
This is the stalked larva of some free crinoid. 
Leptometra A. H. Ciark, 1908. 
1908. A. H. Cuarx, Proc. Biol. Soc. Washington, X XI, p. 129. 
Type.—Alecto phalangium J. Miiller, 1841. 
Aewtos=slender-+ metra. 
bie a 
