19 Cod . 
Systematic. — Hydrozoa. 
0831 
Obelia congdoni sp. n. Massachusetts, 
on Sargassum ; Hargitt Biol. Bull. 
17 p. 375. — 0. japonica sp. n. prov., 
Japan ; Maas Miinchen Abh. Ak. Wiss. 
1909 Suppl. Bd. 1 viii p. 22. — 0. pur- 
purea sp. n., California ; Torrey Univ. 
Cal. Pub. Zool. 0 pp. 20-21 *textdig. 0. 
Octorcharidra orientalis sp. n., Dji- 
bouti ; Hartlaub Zool. Jahrb. Syst. 
27 p. 456 pi. xx figs. 1-5. 
Peganfha clara sp. n. north Atlantic ; 
Bigelow Biol. Bull. 16 pp. 80-82 
2 text-figs. — P. smaragdina pp. 90-92 
pi. xiv figs. 1-2; pi. xix figs. 1-9; 
pis. xx-xxvi, laevis pp. 97-100 pi. xvi 
fig. 1 ; pi. xx figs. 4-6 ; pi. xxvii figs. 
1-7 spp. n. E. Trop. Pacific ; Bigelow 
Mem. Mus. Comp. Zool. Harvard Coll. 
37. 
Phialidium lomae sp. n., California ; 
Torrey Univ. Cal. Pub. Zool. 6 pp. 
22-23 text-fig. 8. 
Phialium baJceri sp. n., California 
(Hydroid form, Clytia baJceri) ; Torrey 
U niv. Cal. Pub. Zool. 6 pp. 21-22 fig. 7. 
Phialopsis gen. n. ( Eucopidae ), p. 23, 
diegensis sp. n., California, pp. 23-24 
text-fig. 9 ; Torrey T.c. 
Phialucium comata sp. n., E.* Trop. 
Pacific ; Bigelow Mem. Mus. Comp. 
Zool. Harvard Coll. 37 pp. 158-160 
pi. v figs. 6-7 pi. vi fig. 9 pi. xxx vii 
figs. 9 10-12. 
Plumularia hahereri sp. n., Japan ; 
Stechow Miinchen Abh. Ak. VViss. 
1909 Suppl. Bd. 1 vi p. 77 pi. vi fig. 4. 
Plumulariidae, British Museum collec- 
tion, note on ; Bi“llard C. R. Acad, 
sci. 148 pp. 367-369. 
Poly podium hydriforme Uss., Bail und 
Beziehungon zum Sterleteneies ; Lipin 
Zool. Anz. 34 pp. 346-356 & 9 text- 
figs. 
Pteromedusae, a new order of Trachy- 
Jine Hydromedusae, for Tetraplatia ; 
Carlgren Wiss. Ergebn. deutsch. 
Tiefsee-Exped. 19 p. 119. 
Ptilocodium gen. n. (fam. Ptilocodiidae 
fam. n., with affinities to Hydractinia, 
Millepora), repens sp. n., Malay Archi- 
pelago, epizoic on a Pennatulid, de- 
scribed ; Coward Amsterdam Proc. Sci. 
K. Akad. Wet. 11 pp. 635-641 1 pi. and 
Amsterdam Vcrsl. Wis. Nat. Afd. K. 
Akad. Wet. 17 pp. 729-735 1 pi. 
Ptychogena californica sp. n., Cali- 
fornia, pp. 13-14 text-figs. 1 2 ; Tor- 
rey Univ. Cal. Pub. Zool. 6. — P. erylhro- 
gonon sp. n. E. Trop. Pacific ; Bigelow 
Mem. Mus. Comp. Zool. Harvard Coll. 
37 pp. 150-162 pi. v fig. 1 ; pi. xxx viii 
figs. 8 9; pi. xxxix figs. 1-7. 
Purena brownei nom, n. ; Bigelow 
Mem. Mus. Comp. Zool. Harvard Coll. 
37 pp. 183-184 pi. vii fig. 7 ; pi. xliv 
ligs 8-10. 
Sarsia coccomeira pp. 179-181 pi. vii 
fig. 8 pi. xl fig. 1 ; pi. xliii figs. 8-9, 
re/iplendens pp. 181-182 pi. vii fig. 1 ; 
pi. xl fig. 8 spp. n. E. Trop. Pacific ; 
Bigelow Mem. Mus. Comp. Zool. Har- 
vard Coll. 37. — S. japonica sp. n., 
diagnosed ; Maas Abh. Ak. Wiss. Mun- 
chen 1909 Suppl. Bd. 1 viii p. 6 pi. i fig. 1. 
— 8. mirabilis p. 302 pi. xxx fig. 2, 
princeps p. 303 fig. 1 ; Bigelow Smith- 
sonian Inst. Proc. U. S. Nation. Mus. 37. 
8 'crippsia gen. n. ( Polyorchidae ) p. 14, 
pacifica sp. n. California, pp. 15—16 
text- fig. 3 ; Torrey Univ. Cal. Pub. 
Zool. 6. 
8elaginopsis mirabilis , probably na- 
tive to British seas, note on structure ; 
Ritchie Proc. R. Physic. Soc. Edinb. 
17 pp. 217-220 & 1 fig.— 8., probable 
origin of genus, relationship to Thuiaria ; 
Ritchie T.c. pp. 221-222 & text-fig. 
Sertularella polyzonias var. n. cornula, 
Andaman Islands ; Ritchie Ann. Mag. 
Nat. Hist. (Ser. 8) 3 p. 526. 
Serlularia heterodonta sp.. n., Scottish 
Antarctic Expedition ; Ritchie Edin- 
burgh Trans. R. Soc. 47 p. 79 text-fig. 4. 
Serlularidae, British Museum collec- 
tion, notes on synonymy and identifica- 
tion ; Billard C. R. Acad. sci. 148 
pp. 193-195. 
Sibogita Maas emend. Bigelow, nau- 
archus i sp. n., Gulf Stream, described ; 
Bigelow Bull. Mus. Comp. Zool. Har- 
vard Coll. 52 pp. 205-209 1 pi.— S. 
simulans sp. n. E. Trop. Pacific ; Bige- 
low Mem. Mus. Comp. Zool. Harvard 
Coll. 37 pp. 213-216 pi. v figs. 4 & 5 
pJ. xli figs. 8 & 9 pi. xliii figs. 1 & 2. 
Tetraplatia , systematic position and 
relationships discussed pp. 104-119, T. 
chuni sp. n., Benguela current p. 79 
pi. x figs. 10-14 pis. xi xii xiii figs. 1-5, 
volitans p. 93 pi. x figs. 1-9 pi. xiii figs. 
