TRANSACTIONS OF THE SECTIONS. 97 
the eyes. Of one species of Zremoctopus the male is known, diminutive like that 
of the Argonaut. The colour, spots, and texture in the specimen in question were 
the same as in the female Argonaut; whilst the aliform appendages to the feet, 
and the shape of the body moulded somewhat to the shell, were characters want- 
ing in the specimen, but present in the Argonaut. It was no Octopus; it had, 
like the Argonaut, a very perfect mechanical arrangement at the base of the siphon 
for the inlet and exit of the water in respiration and progression; sockets to 
receive prominences within the margin of the mantle or sac, and the sockets them- 
selyes with cartilaginous hooks at the lower part to lock the mantle to them. The 
lingual ribbon was that of the Argonaut, not of the Octopus. The eyes and their 
lids or membranous coverings (which differ much in the whole tribe) were like those 
of the Argonaut, consisting of two crescentic portions of skin overlapping. There 
were not the little side cartilages to be found in Octopus or its ally Eledone; there 
were appendages to the branchial hearts absent in Octopus according to Cuvier, 
but not in Zledone, and not wanting in Argonaut; and lastly, there were two 
genital pores in the animal in question, though there is only one in the male Oc- 
topus ; and the excretory ducts were not complicated and glandular in the former, 
whilst the single one is so in the latter. In fact the internal anatomy is in every 
respect the same in the specimen described as in the Argonaut. If a male Tre- 
moctopus, the two genera must be very nearly allied. The stomach contained 
conical shells of Pteropoda, lingual spines of mollusks, and portions of the eyes of 
cuttles and fishes, such fragments as are commonly found in the stomach of the 
Argonaut. In the same parcel was a small Argonaut in its shell, which was less 
than three inches in length, but had a mass of ova in the spire, over which the 
winged arms were folded, and around them the fine extremities of the next pair of 
arms curled. In the ovaries of this and of another larger specimen, the author 
noticed a few threadlike bodies, an inch and a half long, tapering behind, and 
having a hair-like portion at the blunter extremity; he supposes these to be en- 
tozoa. Sepiola Atlantica occurred with the other Cephalopoda, therefore it is not 
exclusively an Atlantic species ; it has eye-pores leading to the subocular glands. 
Rossia microsoma also occurred, its internal structure differing in nothing from the 
last. In both there is a clear membrane stretched over the eye with only a slight 
duplicature before and below; the ink-bag is somewhat quadrate in form, with 
two attached glands. There was a young and an old specimen of Ommastrephes 
todarus: in this species the tentacles are evidently not retractile ; the eyeball is 
much exposed, having a large spade-shaped opening in the integument in front of 
the lens, whilst in Loligo it is covered over completely by a clear membrane; the 
pits at the base of the funnel are triangular, not linear as in Loligo media, which 
also occurred as a Sardinian species ; Eledone cirrhosus and Octopus vulgaris com- 
plete the list of species. In both these the anterior chamber of the eye seems 
closed by an anterior, thicker, and posterior clear crescentic fold. Almost all 
Cephalopoda have ducts from the subocular gland opening externally, and 
yery often other pores opening from cayities about the head. 
Education in Natural Science in Schools. By T. B. Grierson, M.A. 
Notice of Rare Fishes occurring in Norfolk and Lothingland. 
By T. E. Guyn. 
The author, after describing the geographical situation of Norfolk as being 
especially favourable to the production of this class of animals, proceeded to notice 
what previous accounts relating to this subject had been placed on record by 
various authors. After briefly describing the valuable products of the fisheries as 
giving employment to a great proportion of the population near the coast, and 
noticing the subject of the whitebait and sprat, he proceeded to more fully de- 
scribe the occurrence of the principal rarities, commencing with the accounts of 
Sir Thomas Browne, and noticing the fact that some species, apparently rare in 
his time, are now of common occurrence, instancing as fatten examples the two 
species, the lump-sucker and lamprey. Amongst the rarities enumerated are the 
1868, i 
