HYDROZOA. 
Orel 15 
(Now Zealand) ; laxa, sp. n., id. 1. c. p. 275, pi. xxi. figs. 5-7 (Now Zea- 
land). Sovoral now species are named by Kirclionpauor (12), but not 
described. Macrorrhynchia dalli^ sp. n., Clark (5), p. 230, pi. v. figs. 18-20 
(Alaska). 
Kirchenpauer’s (12) system of Plumulariidce : — 
I. Aglao])henia. Vide Zool. Rec. ix. p. 468. 
II. Pluniulariidm^ quarum hydrothecss et nematothecae disjunctaa sunt, 
et quarum gonothecae gonocladiis carent. 
1. Plumularia : polyparia hydrocladiis biseriatis penniformia. 
A. Subg. Isocola : hydrocladiorurn articulis aequalibus omnibus 
polypiferis (P. frutescens, Sol., pinnata, L., disticha^ Heller, 
gaymardi^ Lmrx., Polyplumaria flabellatay Sars, Diplopteron 
insigne, Alim.). 
B. Subg. Anisocola: hydrocladiorurn articulis inaequalibus, alter- 
natim polypiferis (P. gracillima^ Sars, setacea. Ell., cornu- 
copia, Heks., diapliana, Hell., catharina, Johnst., secundaria, 
L., hifrons, Hell., halecioides, Aid., pinnatifrons, Hell., helleri, 
Heks., echinulata, Lmk.). 
C. Subg. Monopyxis : hydrocladiis hydrothecam singulam feren- 
tibus (P. ohliqua, Johnst.). 
2. Nemertesia : polyparia hydrocladiis pluriseriatis, non penniformia. 
A. Subg. Heteropyxis : hydrocladiorurn articulis asqualibus, omni- 
bus polypiferis (H. tetrasticha, Hell., norvegica, Sars, ramosa, 
Lmk. 
B. Subg. Antennularia : hydrocladiorurn articulis inaequalibus, 
alternatim polypiferis (A. antennina, Lmrx., janini, Lmrx., 
triseriata, Pourt.). 
3. Ophionema : Plumularia organis filiformibus capitatis, ad basin 
cupula chitinosa (nematotheca) obtectis, munita {O.parasiticum, 
Sars). 
The following species of these genera are described (of many others, 
icouographic analyses are given) : — 
Plumularia (Isocola) tuhd, sp. n., Kirchenpauer (12), p. 44, pis. i. & ii. 
fig. 2 (Algoa Bay) ; cylindrica, sp. n., id. 1. c. p. 45, pis. i. & iv. fig. 1 
(Java, Philippines) ; hadia, sp. n., id. 1. c. pis. i. & iv. fig. 3 (East 
Australia, Singapore) ; effusa, Busk, id. 1. c. p. 46, pis. i. & v. fig. 4 
(Philippines, Singapore, Torres Straits) ; ohconica, sp. n., id. 1. c. pis. i., 
iii., & V., fig. 6 (Australia) ; P. (Anisocola) rugosa, sp. n., id. 1. c. p. 47, 
pi. vi. fig. 8 (European Seas ?) ; filicaulis, Poepp., id. 1. c. pi. v. fig. 6 
(Chili); oligopyxis, sp. n., id. 1. c. p. 48, pi. vi. fig. 9 (Pacific) ; P. (Mono- 
pyxis) ohliqua, var. australis, id. 1. c. p. 49, pi. vi. fig. 10 (Australia). 
Nemertesia (Heteropyxis) intermedia, sp. u., id. 1. c. p. 50, pi. vii. fig. 23 
(Madeira) ; N. (Antennularia) antennina, var. minor, id. 1. c. p. 61 
(Madeira) ; paradoxa, sp. n., id. 1. c. p. 52, pis. ii., iv. & viii. fig. 27 
(Madeira) : hexasticha, sp. n., id. 1. c. pis. ii., iii. & viii. (Java) ; john- 
stoni, sp. n., id. 1. c. pi. viii. fig. 26 (Algoa Bay) ; decussata, sp. n., id. 
1. c. pis. ii., iii. & vii. fig. 24 (Cape of Good Hope). 
