Genus Seraphisa.

Corpus cylindricum ad basin abrupte dilatatum.

Os prominens.

Tentacula in serie quadruplici disposita, moderatim elongata, gradatim acuminata, acuta.

The body cylindrical, abruptly dilated at its base.

The mouth prominent.

The tentacules arranged in a quadruple series, moderately elongated, gradually acuminated and acute.

1. Seraphisa lineata.

S. corpore purpureo carneo, lineis longitudinalibus albidis distantibus, disco et ore carneis lineis divaricantibus eburneis ornatis; tentaculis carneis pallidissimis, hyalinis ad bases purpureis, annulis violascentibus et eburneis alternatibus ornatis.

Altitudo 5 centimetrorum; latitudo 18 millemetrorum.

Habitat in maris Mediterranei littora scopulosa ad saxa adhærens,

The body purple, inclining to flesh-colour, ornamented with longitudinal distant whitish lines; disk and mouth ornamented with ivory-white lines; tentacules very pale fleshcoloured, transparent; their bases purplish, ornamented with alternating pale violet and ivory-white rings.

Height 5 centimetres; breadth 18 millemetres.

Inhabits the rocky shores of the Mediterranean, adhering

to rocks.

2. Seraphisa modesta.

S. colore hepatico pallido, carneo maculato; disco, ore et tentaculis hyalino, pellucidis violascentibus annulis purpurascentibus ornatis.

Magnitudo omnino præcedentis.

Habitat in maris Mediterranean littora scopulosa ad saxa adhærens.

Body pale liver-coloured, spotted with flesh-colour; disk, mouth, and tentacules hyaline, pellucid, pale violet-coloured ornamented with purplish rings.

The same magnitude as the preceding.

Inhabits the rocky shores of the Mediterranean, adhering to rocks.

MOLLUSCA GASTEROPODA.

1. Succinea elegans.

S. testa elongata, glabro, nitida succinea, anfractubus transversim undulatim striolatis. Animale nigro-grisco commixto notato; capite ruguloso flavescente nigro punctulato; pelli pedeque grisco-flavescentibus nigro punctulatis ; oculis

atris.

Habitat in paludibus prope Nice vulgatissima; magnitudo omnino S. Mulleriana.

S. with the shell lengthened, smooth glossy amber-coloured, with the whirls transversely undulately striolated; the animal marked with grey mixed with black; head roughish, yellowish punctulated with black; eyes jet black.

Inhabits marshes near Nice: is very common, and exactly the size of S. Mulleriana.

2. Succinea patula.

S. teste valde elongata ventricosa globa nitida succinea; anfractubus transversim undulatim striolatis; apertura valde patula. Animal, dorso, pede, pallio, tentaculisque glaucis intensis nigro punctulatis.

Habitat in paludibus prope Nice rarissima.

S. with the shell very much elongated, ventricose smooth glossy, saffron-coloured; with the whirls transversely undulately striolated; the aperture very open, (patulans;) animal with the back, foot, mantle, and the tentacules deep sea-green punctulated with blackish.

Very rare in the marshes near Nice.*

ANNELICIDE.

Sanguisuga Meridionalis.

S. corpore atro-purpureo, lineis duabus longitudinalibus croceis nigro punctulatis; notato lateribus olivaceis maculis punctisque atris maculatis; abdomine olivaceo.

Habitat in fluviis meridionalibus lente fluentibus; in fluvio Var haud infrequenter capta.

Longitudo 1100 millemetrorum.

S. with the body jet black purple; marked with two longitudinal saffron lines punctulated with black; the sides olive green spotted with jet black spots and dots; abdomen olive.

* I have seen but three living specimens.

Found in those rivers in the south of Europe that flow slowly; not unfrequently taken in the Var.

Length 44-12 of an inch.

Hirudo bicolor.

H. dorso vindescente, lineis duabus longitudinalibus croceis, notato, abdomine croceo sordido.

Longitudo 0016 millemetrorum.

Habitat in paludibus et stagnis, prope Nice.

H. with the back greenish marked with two longitudinal saffron lines; abdomen dirty saffron.

Found very commonly in the marshes and pools near Nice.

SPONGIADÆ.

Tameigastra.*

Corpus elongatum, antice, posticeque rotundatum, liberum ante aperturam, abrupte acuminatum ciliatum, postice clausum ròtundatum. Ventriculis corporis longitudinis postice augustis; snperficies interna cellulis numerosis ovatis excavatis sculpta; parietates spongiosa.

Tameigastra Mediterranea.

T. corpore grisco ruguloso, villosulo; ciliis anticis margaritaceis irridescentibus; villis griscis. Longitudo 0040 millemetrorum.

Habitat mari Mediterranea in Villa Franca sinu, vulgatissima.

T. with the body grey, roughish, slightly villose; the anterior cilice pearly, and irridescent.

Found abundantly in the bay of Villa Franca.

ταμείον, cellula et γαστήρ, venter.

ON TWO NEW GENERA OF CRUSTACEOUS ANIMALS, DISCOVERED BY MR. JOHN CRANCH IN THE EXPEDITION TO CONGO.

MALACOSTRACA.

Odontorynchus.*

Thorax antice rostratus; rostrum acuminatum utrinque alternatim dentatum. Lamellæ caudales magnæ elongatæ foliaceae postice latiores apice rotundatæ. Pedum par anticum minutum, bifidum; secundum longius bifidum; tria postica multo largiora, simplicia. Antennæ interiores bifidæ ; articulo secundo multiarticulato; exteriores acuminatæ paululum longiores multiarticulatæ.

Thorax anteriorly rostrated; rostrum acuminated on each side alternately dentated. Caudal lamellæ large, elongated, foliaceous behind broader, with the extremities rounded. Anterior pair of feet minute bifid; second pair longer bifid; hinder pair much larger simple.

Interior antennæ bifid; the second joint many jointed.

ωδοντωθείς

* woorTweis dentatus, et puyxos, rostrum. It belongs to the family Squilladæ.

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