INDEX BIBLIOGRAPHIQUE 451 
Ludwig (H.). — Zur Entwickelungsgeschîchtc des Ophiurenskelcttcs. ( Ibid ., vol. 36, 
p. 181-205, 2 pl.) ... 1882 
- Ophiopteron dedans, eine neue, warscheinlich schvvimmende Ophiuridenform. 
( Ibid ., vol. 47, p. 459-464, 1 pl.) 1888 
- Jügendformen von Opbiuren. (Sitz.-Ber. Akad. Berlin, p. 210-235, 7 fig.) 1899 
Lütken (C. F.) el Mortensen (Th.). — The Ophiuridæ. (Mem. Mus. Harvard Coll., 
23, n° 2, 208 p., 22 pl., carte) 1899 
Lyman (Th.). — Ophiuridæ and Astrophytidæ. 111. (Cutal. Mus. Comp. Zool. Harvard 
Coll., n* 1, 8+200 p. 2 pl.). 1865 
— Supplément to the Ophiuridæ and Astrophytidæ (Ibid., n° 6, 18 p., 2 pl.) 1871 
Ophiuridæ and Astrophytidæ new and old. (Bull. Mus. Comp. Zool. Harvard 
Coll., vol. 3, n<> 10, p. 221-272, 7 pl.) 1874 
Mode of forking among Astrophytons. (Proc. Boston. Soc. Nat. Hist., vol. 19, 
p. 102-108, 4 pl.) 1878 
- The stomach and genital-organs of Astrophytidæ. (Bull. Mus. Comp. Zool. Har- 
vard Coll., vol. 8, p. 117-125, 2 pl.) 1880-1881 
Report on the Ophiuroidea drcdged by H. M. S. Challenger, during the years 
1873-1876. (The voyage of H. M, S. Challenger, Zool., vol. 5, 387 p. 5 pl.)... 1882 
Mktchnikov (E.). — Enlwickelungsgeschicbtliche Beitrfigc. 2. Entwickelung von 
Op/iiolcpis squamata. 3. Métamorphosé der Ophiurcn. (Mél. biol. vol. 6, 
p. 709-732, 711-712, 712-713) 1866 
Mortensen (Th.). — Ubcr Ophiopus arcticus (Ljungrnan), eine Ophiure mit rudimen- 
taren Bursæ. (Zcit. wiss. Z., vol. 56, p. 507-528, pl. 25-26) 1893 
Muller (J.). — Ueber die Ophiurenlarven des Adriatischen Meeres (Muller’s Areh. 
Anut. Physiol., p. 1-20,5 fig.) 1851 
et Trosciiel (F. H.). — (Voir Asléridies.) 
Norman (A. M.'. — On the Morphology of the Ophiuroidea. (Rep. 33 Met. Brit. Ass. 
Adv. Sc M p. 100) 1863-1864 
Quatrefages (A. de). — La petite Ophiure grisâtre est vivipare. (C. R. Ac. sc. Paris, 
vol. 15, p. 799-800) 1842 
Russo (A.). — Embryologia dù\V Amp/uura squamata Sors. (Morph. dell’apareehio ripro- 
duttore. (Atti Accad. Napoli, sér. 2, vol. 5, 24 p. 3 pl.) 1882 
Ricercho oitologichc sugli elementi dcll* Ophureæ (spermalogenesi-oogenesi). 
Morphologia deU’apparccchio riproduttore. (Monathsb. Anat. u. Physiol., 
vol. 8, p, 293-329)... 1884 
Ricercho sulla distruzione el sul rinnovamento del parenchima ovarico nelle 
Ophiure». (Zool. Anz., vol. 14, p. 50-59) 1891 
Fasi del sviluppodel sistema aequifero e dello scheletro calcareo nell’ Amphiura 
squamata Sara, (Anat. Anz., vol. 6, p. 299-308) 1891 
— Sulla connessîone dello sloinaco ed il circolo dello lacune sanguigne aborali 
nelle Ophiothrichidæ. (Z. Anzcig., année 16, p. 76-78, 2 fig.).. 1893 
— Studii anntomîci sulla farniglia Ophiotrichidæ del golfo di Napoli. (Rie. lab. 
Anat. Roma, vol. 4, p. 155-180) .. , 1895 
Sciiultze (Max). — Ueber die Entwickelung von Ophiolepis squamàta, einer lebendig 
gebarenden Ophiure. (Mullcr’s Arch. Anat. Physiol., 37-46, 1 pl.) 1852 
Sim rotii (H.). — Anatomie und Schizogonie der Ophiactis virens Surs. Ein Bcitrag 
zur Kcnntniss der Echinodermen. (Zeit. wiss. Zool., vol. 27, p. 417-485, Nech- 
trag; 1876 
— Id., Part. 2 : Schizogonie. (Ibid., vol. 28, p. 419-526, 4 pl.) 1877 
Sluiter (C. Ph.). — On a probable periodical Amputation of the Disc-covering by 
some Ophiurids. (Tijd. Nederl. Dierk. Ver., Sér. 2, Deel 5, p. 806-310, fig.).... 1898 
Stewart (J. A.). — On the young state of Ophiocoma rosula and on the form and 
development of the spines in this speoies. (Ann. nat. Hist., ser. 2, vol. 18, 
p. 387-391) . 1856 
Verrill (A. E ). — Restoralion of the disk in Ophiurans. (Ann. Mag. Nut. Hist., 
sér. 5, vol. 9, p. 476-477) 1882 
— Report on the Ophiuroidea collectcd by the Bahama-Expcdition in 1893. (Bull. 
Jab. N. H. Jawa, vol. 5, p. 1-86, 8 pl.) 1899 
North American Ophiuroidea. (Trans. Connecticut Acad. vol. 10, p. 301-386, 
pl. 42-43) 1900 
Zür Strassen (O.). — Zur Morphologie des Mundskelets der Ophiuriden. (Z. Anz. 
vol. 24, 1901, p. 620-629, 4 fig.) 1902 
