278 REPORT—1868. 
into a rounded lobe of considerable size, fringed with plumose sete ; 
carpus antero-distally bearing a circlet of strong spines; propodos much 
flattened and expanded. Third segment of pleon having the posterior 
margin waved, and produced backwards at the infero-posteal angle into 
an acute hastate point. Telson cleft almost to the base, having a row 
of spine-like hairs down middle of each portion, reaching to the middle 
of the branches of the last uropods, which are much longer than the 
preceding pairs. Balta Sound and St. Magnus Bay, Shetland (A. M.N); 
Kirkwall Bay, Orkney (Mr. D. Robertson); Aberdeenshire (Mr. Dawson). 
[Ampelisea macrocephala, Lilljeborg, Ofversigt af Kong. Vetensk. 
Akad. Forhandl. 1852, p. 7, and 1855, p. 137; Bruzelius, Skand. Amphip. 
Gammarid. p.85; Bate, Cat. Crust. Amphip. Brit. Mus. p. 94, agrees 
with A. levigata in having the infero-posteal angle of the third seg- 
ment of the pleon produced backwards into a spine-like point, but 
differs in that the meros of the last pereiopods has no posterior lobe. 
Thave dredged it in the Sound of Skye. The Ampelisca Belliana of Bate 
appears to be referable to this species. ] 
Phowus Holbolli, Kroyer. Out Skerries Harbour, 3-5 fathoms; St. Magnus 
Bay. 
= ilaiaite Kroyer. Balta Sound, St. Magnus Bay; Outer Haaf, 3-90 
fathoms. 
Gidiceros parvimanus, Bate & Westwood. The type specimens were procured 
in 1861, in 70-90 fathoms, sixty miles east of Shetland; and I have since 
found it in other directions on the Haaf, and very abundantly on the 
soft muddy ground of St. Magnus Bay. 
—— equicornis, n. sp. Rostrum extending beyond the first joint of upper 
antenne. Upper antenne having the three joints of the peduncle of 
nearly equal length, each more slender than preceding; filament equal 
the length of last two joints of peduncle, composed of five long articu- 
lations. Lower antenne slender but short; peduncle exceeding the 
length of that of superior by nearly the last joint, which is equal in 
length to the penultimate ; filament very slender, 4-5 jointed, equal in 
length to the last joint of peduncle. First gnathopods with wrists in- 
feriorly produced into a wide rounded lobe reaching forwards to the 
commencement of the palm; hand obovate, widest in the centre where 
the palm commences, which is very oblique; finger slender, simple, as 
long as palm. Second gnathopods very like the first, but the hand 
slightly larger, and rather more elongated. All the pereiopods with very 
long and nearly straight nails, which about equal the propodos in length ; 
propodos much longer than carpus. Penultimate pereiopods with a row 
of sete down the middle of the basos. Last pereiopods with the basos 
small, elongated, pear-shaped, equally produced anteally and posteally ; 
both margins with small cilia, the hinder margin also crenated; the last 
four joints all greatly produced, and each longer than the basos; the 
whole limb very long. Length about one-fourth of aninch. A single 
specimen from St. Magnus Bay, in 30-60 fathoms, 1867. @. cequicornis 
comes near to (@. brevicalear of Goes; but his figures represent the 
hands narrower in proportion to the wrists than in the present species, 
and there are other slight points of difference. He does not describe or 
figure the last pereiopods, which are the most characteristic organs in 
i. equicornis. 
Genus Syrruol, Goes. 
Head produced into a rostrum. Eyes like those of @diceros. Upper an- 
