652 
ZOOLOGICAL LITERATURE. 
by Liitken for this species. Verrill, 1. c. p. 316, thinks that, as this species 
was the type of the genus Cassidulus when first established by Lamarck, tlio 
the genus should be restricted to species like it. 
Nucleolitcs epigonus, Martens, is figured in Taf. 3. fig. 3 of Wiegm. Ar- 
chiv f. Naturg. xxxiii. Jahrg. 1. Bd. 
SpatangidcB. 
Brissus ohesus, sp. n., Verrill, 1. c. p. 316, Gulf of California. 
Meoma nigra (A. Agas. sp.), near M. gramlisj Gray, Acapulco, Verrill, 1. c. 
p. 317. 
Metalia nohilUk, sp. n., Yenill, 1. c. p. 319, Panama Bay. 
Palceostoinidce, Gray. 
Leshia (Balccostoma, Gray) miralilis, Gray, is redescribed by Lov»5n (1. c.). 
J)r. J. E. Gray’s specimen was from the Island of Luzon ; those described by 
Prof. Lov^n were obtained by Mr. Kinberg in the Indian seas, between 
Singapore and Batavia. We may observe that this species has been taken by 
Dr. W. Stimpson ‘‘ in 20 f. mud, near Gr. Lema, off the coast of China, 
near Hong-Kong. Dead specimens show that it grows to a length of 3 
inches. Of a pale straw-colour, feet blood-red ” (Proc. Acad. Nat. Science 
Phil. Dec. 1863, p. 360). While intimately allied to the Spatangidce, it i.s 
distinguished and, indeed, becomes the type of a new family, by the peri- 
stome and periproct being closed up by a small series of triangular converging 
valves, those of the anal orilice having some small spicules in the centre j but 
for the oral and anal orifices, Lcskia would be a true Spatangoid j but noliv- 
iug Echinoid 'discovered up to this time has such an oral opening. Professor 
Loven describes Sphceronites pomum and Echinosp)hcerites anrantium, and 
draws the conclusion that in Lebkia mirahilis vre have a Spatangoid with the 
mouth of a Cystidmn^ tlius justifying Dr. Gray’s original suggestion when 
first describing the genus. 
IIOLOTIIUROIDEA. 
Pneumonopiiora. 
Aspidochirotoi. 
Selenka (/. c.) describes as a new genus Zabidodemas, 1 . c. p. 309. Feet 
in five distichous rows; tentacles twenty. L. sp. n., p. 309, 
Taf. 17. figs. 1-3, Sandwich Isles. 
Zabidodemas sclenkiamim, sp. n.. Semper, 1. c. p. 77, Viti Isles. 
SiSEENKA describes the following new species oH MiiUeria, Bdt. : — ]\Udleria 
varians — M. mauriiiamt, Q,. Sc G. 1. c. p. 310, Taf. 17. figs. 4-9, Viti, Sand- 
wich, and Friendly Isles. [In a specimen of this species a great number (00) 
of small, elastic, bladder-like bodies were found hanging round the circular 
canal, and full of isolated ellipsoidal cells ; the upper end was spathiform, 
the under attached by a long thread. These bodies were not met Avith in 
any other examples of this species, many of which were examined with this 
object in view ; but they Avere once again met Avith in a specimen of 31. ph- 
beja from Zanjibar.] 31. obesa, 1. c. p. 312, Sandwich Isles; 3Z nobilis, 1. c. 
p. 313, Taf. 17. fig. 13-15 (of the specimens examined, those with white spots 
panic from Zanjibar^ and t]iose ^iiite black from the Sand>vic)i Isles) ; 3Z r((~ 
