EOHINODERMATA. 
321 
Asteriadce have been discovered by him : — Comatula mediterranean 
Lam. ; Gorgonocephalus verrucosus, Lam. ; Ophiura lacertosa, Lam. ; 
pentagona, Lam. ; squammata, Lam. (Ophiolepis Ballii, from Miiller 
and Troschel’s account) ; moniliformis, Grub. {Ophiolepis squamata of 
Miill. and Tr.) ; cordifera, Delle Chiaje ; scutellum, Grub. {Ophionyx 
scutellum, Miill. and Trosch.) ; rosularia. Grub. (Ophiacantha setosa, 
Miill. and Trosch.) ; fragilis, Miill. ; Asterias coriacea, Grub. {Ophi- 
diaster attenuatus. Gray, according to Miill. and Trosch.) ; suhulata, 
Lam. ; seposita, Lam. ; glacialis, Lam. ; aurantiaca, L. ; hispinosa, 
Ott. ; platyacantha, Phil. ; pentacanthe, Delle Chiaje ; memloranacea, 
Retz. Of Echinidce Grube has found the following ; — Spatangus flaves- 
cens, Miill.; atropos and carinatus, Lam.; Echinus saxatilis, L.; neapo- 
litanus, Delle Chiaje ; esculentus, L. ; miliarus and neglectus, Lam. 
Of HolothuriadcB the following ; — Holothuria regalis, Cuv. ; Sanctori, 
DeUe Ch. ; tuhulosa, Miill. ; Stichopus cinerascens, Br. ; Sporadipus 
impatiens, Forsk. ; Stellati, Delle Ch. ; maculatus, Br. ; Cladodactyla 
doliolum, Pall. ; Dicquemarii, Cuv., with several species which he holds 
as new, viz. — Holothuria mammata, catanensis, Sporadipus glaher, 
Psolus granulatus, Cladodactyla syracusana, Chiridota Chiaii, and 
pinnata. Grube has, at the same time, characterized two new genera. 
The one, Phyllophorus, is intermediate between the genera Sporadipus 
and Cladodactyla of Brandt. There is a single species taken at Palermo, 
Phyl. urna. The feet of this animal are scattered over the whole body, 
and are not arranged in rows, and its tentacles are branched and arbore- 
ous, and not in the form of a shield. The other genus, called by Grube 
Hoplodactylus, is allied to Liosoma, Br., but has the tentacles not shield- 
shaped, but simply cylindrical, and is only represented by one species, 
Hopl. mediterranea. Besides the Sipunculus nudus, L., and verru- 
cosus, Cuv., Grube discovered the genus defined by him Anoplosoma- 
tum, which forms a transition from the Echinodermata to the worms, 
having a simple cylindrical body, neither furnished with tentacles, teeth, 
nor warts, nor with bristles or short pedicles to the feet ; but each end 
of the body is perforated by an opening. The only species, named by 
Grube Anopl. utriculus, was got at Palermo, and is unarticulated 
throughout, and of a pale flesh colour. 
The nervous system of the Sipunculus nudus, the knotless abdominal 
cord of which, from its position, puts us in mind of the nervous system 
of the Annulata and of the Holothuria tuhulosa, has been described by 
Krohn. (Miill. Arch., 1839, p. 348 ; and 1841, p. 9.) 
Some observations on the remarkable power of reproduction of the 
Holothurice have been communicated by Dalyell. (Froriep’s Neue 
Notiz., 1840, p. 1.) 
A new Synapta has been found in the British Channel by Quatre- 
fages, and described as Syn, duvencea with the following diagnosis : — 
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