ECHINODERMATA. 
639 
Lutken, Chr. Endnu et Par Ord om de gamle Soliliers 
Siiabel og Mund. Videnskab. Meddel. fra den Naturhist. 
For. Kjobenhavn, 1869, pp. 160-188. 
Some few additional remarks on the trompe and the mouth 
of the fossil Crinoids, the author instancing the recent Hyponome 
sarsii, Lov., as a positive proof that the trompe is nothing 
but an anal tube, and that the mouth is internal in the Cys- 
tideans. 
. Additamenta ad historiam Ophiuridarum. Beskrivende 
og kritiske Bidrag til kundskab om Slangestjernerne. 
Tredie Afdeling. Vidensk. Selsk. Skr. Kjobenhavn, 1869, 
pp. 2^Jt-109. Besume fran 9 ais, pp. 101-1()9. 
This memoir forms a most valuable supplement to the author^s 
two previous memoirs published in 1858-1859, on the Ophiu- 
roids ; in addition to the description of several new genera 
and species it contains a Synopsis generum Ophiuridarum 
vcrarum.^^ The diagnosis of the genera and families arc given 
in Latin. The fossil forms of Ophiuroids are also referred, for 
the most part, to recent genera. 
. Ueber Choriaster granulatuSy eine neue Gattung aus der 
Familie der Asteriden. Separat-Abdruck aus dem Catalog 
iv. des Museum Godeffroy. Hamburg, 1869 (p. xxxv in 
Catalogue). 
Metschnikoff, Elias. Studien iiber die Entwickelung der 
Echinodermen und Nemertinen. Mem Acad. Imp. Sci. 
St. P^tersb. xiv. No. 8, 1869, pp. 1-73, tab. 1-12. 
This important memoir treats : — 1. Of the metamorphosis of 
Auricularia ; 2. Of the embryology of Amphiura squamata ; 
3. The metamorphoses of the Ophiuridse ; 4. On two Pluteus- 
formed Ophiuroid larvse; 5. Metamorphosis of an Asterias) 
6. On the metamorphosis of the Echinoidea. Gives an account 
of the development of Echinus lividus and of a spatangoid larva. 
Pourtales, L. F. de. List of the Crinoids obtained on the 
coasts of Florida and Cuba by the United States Coast 
Survey Gulf-streamExpeditions in 1867, 1868, 1869. Bull. 
Mus. Comp. Anat. Harvard College, Camb. Mass., No. 11, 
Nov. 1869, pp. 355-358. 
■ . List of Holothuridse from the deep-sea dredgings of the 
United States Coast Survey. Ibid. No. 12, Nov. 1869, 
pp. 359-362. 
Troschel, F. H. Nachtragliche Bemerkung iiber die Gattung 
Crustulum. Archiv f. Naturg. xxxv. 1. Bd. pp. 52-57. 
Verrill, a. E. On new and imperfectly known Echinoderms 
and Corals. Proc. Bost. Soc. Nat. Hist. vol. xii. April 7, 
1869, pp. 381-396. 
