118 , REPORT—1862. 
pea Norvegica. When this is discovered we may expect to find associated 
with them many interesting Boreal species, perhaps too small to have attracted 
the attention of the fishermen. 
Some interest attaches to the subfossil or upper tertiary shells which were 
dredged in very deep water twenty to thirty miles east of Berwick. Amongst 
these were Astarte elliptica and Mya truncata, var. Uddevallensis, neither of 
which have been found living on our coast, and Margarita cinerea, an extinct 
species, which has been recently dredged under similar conditions in other 
localities. 
The whole of the Crustacea which were obtained have not as yet been 
examined; but among those already determined are many of great interest. 
In all about 90 species were dredged. Among the Podophthalmia, mention 
may be made of Jnachus Dorsettensis as new to the N.E. coast of England, and 
of Crangon spinosus, bispinosus, and Allmanni. The last of these, a recently 
distinguished species, was abundant both off the Durham and Northumberland 
coasts. From several specimens of Hippolyte securifrons which were obtained, 
Mr. Norman is enabled to correct an error in the specific character which he 
gave at the last meeting of the Association, from the Shetland type specimen. 
He finds that there are four instead of three pairs of spines on the front 
margin of the carapace, two spines being placed together over each orbit. 
Both sexes of Mysis spiritus (Norman), only previously known from three 
or four females taken near Hartlepool, were dredged in considerable numbers ; 
and also an undescribed species of the same genus, which Mr. Norman thus 
describes :— 
“ Mysis didelphys (Norman, n. sp.). 
«« Antennal scale lanceolate, twice as long as the eye, two-jointed, ciliated 
all round; the second joint very short, with a rounded apex terminating in 
five cilia. Telson entire, not more than two-thirds the length of the in- 
termediate, and half the length of the external lamine of the tail; lateral mar- 
gins of telson armed with ten spines, some of which are situated quite at the 
base; apex with a large spine at each corner, but no central intermediate 
spines. 
“This is a much stouter species than Mysis vulgaris, to which it is nearly 
allied. The antennal scale is less produced; and the second joint is much 
shorter, and terminates in five cilia instead of in an acutely pointed spine. 
The telson is likewise shorter, with fewer lateral spines, and without the two 
intermediate apical spines which are present in M. vulgaris. Mysis didelphys 
was dredged in deep water, forty miles off the coast, while the habitat of M. 
vulgaris appears to be invariably the brackish waters of estuaries and salt- 
marshes.” . 
The curious and abnormal family of the Diastylide was well represented 
by Diastylis Rathkii, Eudora truncatula, Vaunthomsonia cristata, and three 
undescribed species. These are thus named and described by Mr. Norman :— 
“ Quma rosea (Norman, n. sp.). 
« Last five segments of the thorax uncovered by the carapace. No abdominal 
legs. Carapace unarmed above and below, rounded in front. Telson well 
developed, as long as the basal portion of the caudal appendages, furnished 
with two spines on each side, and having the rounded apex closely surrounded 
by seven subequal spines. Colour white, mottled with rosy spots. Dredged 
50-60 miles east of Tynemouth. 
“ Cyrianassa elegans (Norman, n. sp.). 
“Only three pairs of abdominal legs, which are the appendages of the first 
three segments, Telson produced, as long as the basal joints of the caudal 
