SYSTEMATIC INDEX. 
Twi. 7 
OiJcopleura vanlioeffeni , anatomy; Salens ky, Mem. Ac. St. Petersb. (8) 
xiii, No. 7, 44 pp., 5 pis., 3 figg. in text. 
Oligotrema n. g. ( Molgulidce ) psammites , New Britain, 50 fath. ; Bourne, 
Quart. J. Micr. Sci. (n. s.) xlvii, n. sp. 
Paramolgula , p. 130, key to Arctic spp., p. 131, symmetrica, p. 131, 
arctica , p. 131, rara, p. 132; Hartmeyer, Fauna Arctica iii. 
Pelonaia , p. 203, corrugata , p. 203, pi. v, fig. 14 ; Hartmeyer, t. c. 
Phallusia{V) sutherlandi , p. 295; Hartmeyer, t. c. : P. mamillata and 
mentula, regeneration at different stages of development ; Driesch, 
Arch. Entwickmech. xvii, pp. 54-63, 3 figg. in text. 
Polycarpa, p. 226, libera, p. 226, pi. v, fig. 7, pomaria, p. 229 ; Hartmeyer, 
Fauna Arctica iii. 
Polyclinidce, p. 315; Hartmeyer, t. c. 
Polyclinum , p. 316, key to Arctic spp., p. 316, pannosum, p. 316, globosum, , 
p. 317 ; Hartmeyer, t. c. 
Polyzoince n. subfam. of Styelidce, p. 257 ; Hartmeyer, t. c. 
Rhizomolgida, p. 167, ritteri, Baffin’s Bay, p. 168, pi. vi, fig. 1, pi. ix, 
figg. 5-9 and text- fig. ; Hartmeyer, t. c., n. sp. 
Salpa, pulsation of heart; Eeeker, Jaliresber. Wostfal. Yer. xxx, pp. 45- 
47: S.'africana, digestive ferments; Henri, C.R. Ac. Sci. cxxxvii, 
pp. 761-763, and C.R. Soc. Biol, lv, p. 1318: S. spp., structure and 
development of heart; Heine, Zeitschr. wiss. Zool. lxxiii, p. 429, 
pis. xxix-xxxi. 
S. ( Stephanosalpa ) polyzona, Strait of Ormuz, p. 622 ; Bonnier & PIsrez, 
C.R. Ac. Sci. cxxxvi, n. sp. 
Salpidce of N. Atlautic; Lohmann, SB. Ak. Berlin 1903 (i), pp. 560-683. 
Sarcobotrylloides , p. 263, aureum , p. 263, pi. vi, figg. 15, 16 & 20, pi. xi, 
figg. 13-19, text-figg. 17-21 ; Hartmeyer, Fauna Arctica iii. 
Stephanosalpa n. subg. of Salpa (q.v.), p. 621; Bonnier & P^rez, 
C.R. Ac. Sci. cxxxvi. 
Styela, p. 206, key to spp., p. 206, bathybia, p. 206, gelatinosa , p. 207, 
clavata, p. 208, loveni, p. 209, pi. v, figg. 4-6, pi. xi, figg. 6-9, text-figg. 
6-11, partita, p. 216, pi. xi, figg. 1-5, rustica, pp. 217, 373, pi. v, 
figg. 2 & 3, cylindriformis, p. 224, finmarlcensis, p. 224, villosa, p. 225 ; 
Hartmeyer, Fauna Arctica iii. 
Styelidce, p. 201 ; Hartmeyer, t. c. 
Styelince , p. 202, key to gen. p. 203; Hartmeyer, t. c. 
Styelopsis, p. 253, grossidaria, p 253, pi. v, figg. 12 & 13; Hartmeyer, 
t. c. 
Synoicum, p. 346, key to Arctic spp., p. 348, turgens, p. 349, irregular e, 
p. 350, pi. vi, fig. 10, pi. xiv, fig. 1, incrustatum , p. 352, pi. vi, fig. 11, 
pi. xiv, fig. 5, haecheli, pp. 353, 374, pi. vi, fig. 12, pi. xiv, figg. 2-4, 
text-figg. 50-52 ; Hartmeyer, t. c. 
