29 Orust. 
CRUSTACEA. 
Telson double. O. tetiuicornis, sp. n. Haswell, /. c. pp. 266 & 322, 
pl.-viii. fig. 6, Howick Islands, N.E. Australia. 
Stegocephalus latus, sp. n., id. 1. c. p. 252, pi. viii. fig. 2, Tasmania. 
Amaryllis, g. n., subfam. Stegocephalince. Superior antennae with a 
well-developed appendage. Mandibles with a palpus. Maxillipeds with 
well-developed squamiform plates. Anterior gnathopods subpediform. 
Posterior gnathopods imperfectly subchelate. Rami of the fourth and 
fifth pleopods styliform ; those of sixth pair broad, lanceolate. Telson 
squamiform, cleft. A. macrophthalmus, Tasmania, and brevicornis, Port 
Jackson. Haswell, 1. c. pp. 254 & 255, the former pi. viii. fig. 3. 
Neobule, g. n., subfamily Stegocephalinoi. Superior antennae simple. 
Mandibles without an appendage. Maxillipeds with a squamiform pro- 
cess on the bases only. Gnathopods subchelate ; second pair the larger ; 
coxae of anterior pair well- developed. Fourth pair of coxae wide, exca- 
vated behind to receive the anterior part of the fifth pair. Posterior 
pleopods biramous. Telson squamiform. N. algicola, sp. n., Haswell, 
1 . c. p. 255, pi. viii. fig. 4, Kiama, New South Wales. 
Cyproidea, g. n., subfamily Stegocephalince. Body broad, perion and 
pleon of equal length. Coxae of the first and second pair of periopods 
enormously developed, and cemented together to form broad and deep 
lateral shields, almost entirely concealing the gnathopods and periopods, 
extending forwards to the sides of the cephalon and backwards as far as 
the posterior border of the sixth thoracic segment, excavated posteriorly 
for the amalgamated shallow cox® of the third and fourth periopods. 
Mandibles with a palpus. Gnathopods subcheliform. Telson single. (7. 
ornata and lineata, spp. nn., Clark Island, Port Jackson, amongst sea- 
weed at low- water mark. Haswell, 1. c. pp. 320-322, pi. xviii. figs. 1 & 2. 
Fhoxus villosus and batii, spp, nu., id. 1. c. pp. 258 & 259, pi. ix. figs. 2 
& 3, Port Jackson. 
Urothoe pinguis, sp. n., id. 1. c. p. 325, pi. xix. fig. 2, Bondi, New South 
Wales. 
Montagna miersi and longicornis, spp. nn., id. 1 . c. p. 323, pi. xxiv. figs. 4 
& 6, Port Jackson. 
Eusirus dubius, sp. n., id. 1 . c. p. 331, pi. xx. fig. 3, Tasmania. 
Leucothoe commensalis, sp. n., Port Jackson (common, in the pharynx 
of Ascidians), diemenensis and gracilis, spp. nn., Tasmania, id. 1 . c. 
pp. 261-203, pi. X. figs. 3 & 2, pi. ix. fig. 5. L. novce-hollandicc, sp. n., id. 
1 . c. p. 329, pi. XX. fig. 2, New South Wales. 
Amphithonotus Iccvis, sp. n., Thomson, Ann. N. H. (5) iv. p. 330, pi. xvi. 
figs. 1-4, Dunedin, New Zealand. 
(Edicerus latrans and arcnicola, spp. nn., Haswell, 1. c. pp. 324 & 325, 
pi. xix. fig. 1, pi. xxiv. fig. 3, New South Wales, burrowing in sand near 
high-water mark, the last closely resembling (E.fossor (Stimps.). 
Pherusa Icevis, sp. n., id. 1 . c. p. 260, pi. ix. fig. 4, New South Wales. 
Iphimedia ? ambigua, sp. n., id. 1. c. p. 327, pi. xxiv. fig. 2, New South 
Wales. 
Atylus swammerdammi (M.-Edw.). Dutch specimens described by P. P. 
0. Hoek, Tijdschr. Nederl. Dierk. Ver. iv. pp. 134-137, pi. vi. fig. 5, pi. x. 
figs. 1-6. 
