33 Echin. 
Systematic, General, Holotiiurioidea. 
— O. Jrondosa ; Derjugin (pi. ii, 00, 91, 
148). — 0. grandis sp. n. Wandel Id. 
shore ; Vaney, 2, Bui. Museum Paris, 
1906, (405) : descr. ; Vaney, 3 (12).— C. 
irregularis sp. n., 40 m., Carthage B. ; 
Vaney, 2, Bui. Museum. Paris, 1906 
(405) : descr. ; Vaney, 3 (14, pi.).— C. 
lactea ; Retzius (fig.). — O. laevigata , 
juv., descr. ; Herocard, 2 (12, pis.). — C. 
lateralis sp. n., various locc., shore to 
1 10 m., Charcot Exped. ; Vaney, 2, Bui. 
Museum Paris, 1906 (405) : descr., 
Vaney, 3 (15, pi.). — C. leonina , descr., 
ontogeny; IIerouard, 2 (11, pis.). — G. 
planci ; Johnstone (239). — G. turqueti 
sp. n., Biscoe B., 40 m. ; Vaney, 2, Bui. 
Museum Pai-is, 1906 (406) : descr. ; 
Vaney, 3 (18, pi.). 
Enypniastes eximia, plate reproduced 
by three-colour process after a water- 
colour sketch from life ; Mitsukuri. 
Eupyrgus scaler ; Derjugin (149). 
Holothuria arguinensis sp. n., Mauri- 
tania coast ; Koehler & Vaney, 3, 
Bordeaux, Actes soc. linn., 60 (62, pis). — 
H. atra ; Herdman, 3 (447). — IL elleri, 
Polara, 2. — 77. forskali ; Dubois : 
Polara, 2. — 77. impatiens ; Briot, 2. — 
77. neillii ; Ostergren. — 77. nigra, anat. ; 
MaoBrfde, 2 (561). — 77. poli ; Polara, 2 
and 3 : Briot, 3 : physiol, distinction fr. 
77. tubidosa ; Briot, 2. — 77. stellali ; Lo 
Bianco (94, 98). — 77. tubulosa ; Briot. 2 
and 3 : Polara, 2 and 3 : Lo Bianco (94, 
98). 
Labidoplax discussed ; Becher (506). 
t horenzinia apenninica Gabelli ; simi- 
lar imprints descr., probably Hoi. aff. 
Pelagothuria ; Simonelli, (fig.). 
Mesothuria , discussed (5), diagnosed 
(6) : M. bifurcata, descr. (4, pi.) ; 
IIerouard, 1. -M. intestinalis ; Retzius, 
(fig.).— M. murrayi ; IIerouard, 2, (6). 
Myriotrochus rinki ; Derjugin (149). 
Pelagothuria, general discussion ; 
Kemna : affinities, dist.rib. : P. bouvieri 
sp. n. N. Atlantic, 31° N. 42° W., sur- 
face, descr., anat. ; Herouard, 3, Bull. 
Mus. Monaco, 60 : Bouvier, 2, (p. 496, 
fig. 15). 
Peniagone vignoni, descr. ; IIerouard, 
2, (8, pis.). 
Phyllophorus communis, synonymy : 
P. drummondi : P. pellucidus, synonymy ; 
Ostergren. — P. uma ; Lo Bianco (98). 
(n-9720 m) 
1031 A, B 
Pseudocucumis cuenoti, syn. of P. 
mixta : P. mixta, synonymy ; Oster- 
gren. 
Psolidium convcrgens (Her. sub 
Cucumaria), descr., relations to Sem- 
peria ; Herouard, 2, (13, pis.). 
P solus antarcticus, measured ; Vaney, 
3, (21). — P. belgicae, descr. ; Herouard, 
2, (14, pis.).— P. charcoti sp. n. 110 m., 
Biscoe B. ; Vaney, 2, Bui. Museum, 
Paris, 1906, (406) : descr. ; Vaney, 3, 
(21, pi.). -P. fabricii ; Derjugin, (94, 
149). — P. granulosus sp. n., Wandel Id., 
shore; Vaney, 2, Bui. Museum, Paris, 
1906, (407) : descr. ; Vaney, 3, (23, pis.). 
— P. phantapus ; Derjugin, (149). — 
P. segregatus sp. n. for P. squamatus 
var. segregatus R. Perr. ; Vaney, 3, 
Exp&l. antarct. frang. sci. nat. Docu- 
ments sci. (Paris), 1906, (27 pi.). 
Tthabdomolgus ruber ; Beciier, (509). 
llhipidothuria racovitzai , descr. ; 
Herouard, 2, (7, pi.). 
Sigmodota studeri, fragments, 
Herouard, 2, (15). 
Synallactes sp., Biscoe B., descr. ; 
Vaney, 3, (5). — S. cartliagei sp. n., 40 m., 
Carthage B. ; Vaney, 2, Bui. Museum, 
Paris, 1906 (403): descr.; Vaney, 3, 
(3, ph). 
Synallactinae, tentacular ampullae ; 
IIerouard, 2, (7). 
Synapta sp. ; Bochenek. — S. buski ; 
Retzius, (fig.). — S. digital a ; Becher, 
(508). — S. inhaerens ; Beciier, (509) : 
Woodland, (556; : in plankton. Lo 
Bianco, (85). — S. minuta sp. n. Helgo- 
land ; Becher, Zool. Anz., Leipzig, 30, 
(505). 
Thyone fusus ; Woodland, (550). — 
T. portlocki ; Ostergren. — T. scotiae 
sp. n. (400, figs.), T. turricala sp. n. 
(401, fig.), S. Orkneys, shore ; Vaney, 1, 
Bui. Museum, Paris, 1906. 
Thyonidium commune, T. dubeni ; 
Ostergren. 
Trochostoma antarcticum , descr. ; 
IIerouard, 2, (15). 
Zygothuria, rejected ; IIerouard, 2, (5). 
C. Eciiinoidea. 
Taxonomic value of pedicellariae, 
views of Mortensen discussed ; proposed 
classification of recent Ech. : Subclass I. 
b 9 
