20 Ccel. 
XVI. CCELENTERATA. 
\Dictyonema , occurrence and affinities, in the Upper Cambrian slates of 
Nova Scotia, Ami, P. Nova Scotian Inst, x, pp. 447-450, and Poole, 
t. c. pp. 451-454. 
t Leptograptus Jlgccidus , p. 106, pi. xiv, fig. 1, n. yar. spinifer , p. 108, 
fig. 2, var. macilentus, fig. 3, pi. v, fig. 1, n. yar. macer y p. 110, pi. xv, 
fig. 2, n. var. arcuatus , p. Ill, fig. 3, L. capillaris, p. 112, fig. 4, 
L. validus , p. 113, pi. xvi, fig. 1, var. incisus, p. 114, fig. 2, L. grandis , 
p. 115, fig. 4, t L. latus, Shropshire, p. 116, pi. xvi, fig. 5, L. ascendens , 
Scotland, p. 117, fig. 6, n. spp., Elles & Wood, Pal. Soc. Mon. lvii. 
t Monograptus sp. unnamed but near M. dubius, New South Wales, Hall, 
P. Linn. Soc. N. S. Wales xxvii, pp. 654 & 655, 1 fig. 
t Nemagraptus gracilis , p. 127, pi. xix, fig. 1 , var. surcularis , p. 129, fig. 2, 
n. var. remotus , S. Scotland, p. 130, fig. 3, var. nitidulus , p. 131, 
fig. 4, N. explanatus, p. 133, fig. 6, var. per tenuis, p. 134, fig. 7, Elles 
& Wood, Pal. Soc. Mon. lvii. 
t Pleurograptus linearis , p. 119, pi. xvi, fig. 7, pi. xvii, fig. 1, var. simplex, 
S. Scotland, p. 121, fig. 2, Elles & Wood, t. c. 
IV. SCYPHOZOA. 
[The following memoirs refer to Scyphozoa : — Aders (2), Browne (23), 
Hargttt (101), Hesse (107), Kinkelin (119), Maas (135), Macallum (137), 
Ritter (184), Vanhoffen (212 & 213), Ziegler (233).] 
SUBJECT INDEX. 
General Biology. 
Organs of light-perception in Aurelia, Hesse (107). 
Male reproductive organs of Aurelia aurita , Aders (2). 
Inorganic composition of Aurelia Jlavidula and Cyanea arctica , Macallum 
(137). 
Experimental studies in cell division, Beroe eggs, Ziegler (233). 
Geography. 
Norway and Spitzbergen, collection, Browne (23). 
Dutch East India, n. genera and spp., n. fam., Maas (135). 
“Valdivia” deep sea expedition, n. spp., craspedote medusae, Vanhoffen 
(213) ; acraspedote medusae, Vanhoffen (212). 
North America, synopsis of genera, Hargitt (101). 
San Diego, marine biology, Ritter (184). 
tDevonian, first medusa in this formation, n. sp., Kinkelin (119). 
Systematic. 
Agliscra ignea , Seychelles, anatomy, Vanhoffen, “Valdivia” Exp. iii, 1, 
p. 76, pi. ix, fig. 10, n. sp. 
Atolla valdivice , anatomy, Maas, Siboga-Exped. xi, p. 17, pi. i, figg. 3 & 4, 
pi. iii, fig. 23, pi. xii, fig. 108 ; A. chuni, A. valdivice, Indian Ocean, 
Vanhoffen, “Valdivia” Exp. iii, 1, pp. 12 & 13, pi. i, figg. 1-3, n. spp. 
Atorella subglobosa , Vanhoffen, t. c. p. 33, pi. iii, fig. 11, n. sp. ; A. 
subglobosa, anatomy, Maas, Siboga-Exped. xi (x), p. 10, pi. iii, figg. 
16-18. 
