of the Fishery Board for Scotland. 279 
None of the specimens examined possessed the strong tooth-like projection 
on the dorsal aspect of the abdomen which is so characteristic of the 
typical Spirontocarts spinus of Sowerby. Though the specimens varied 
greatly in size and age, it was only in one or two small specimens that 
there was observed any tendency towards the development of a tooth-like 
projection on the middle of the posterior margin of the third abdominal 
segment. It may be that Sprrontocaris securifrons should only be 
regarded as a synonym of Spirontocaris spinus (Sowerby) ; and, with the 
exception of the tooth-like projection on the dorsal aspect of the abdomen 
alluded to, they are certainly very like each other. My use here of the 
name is merely to indicate that the form which was common in the 
gatherings collected by the “‘Garland” off Aberdeen is the form described 
by Norman as Hippolyte securifrons.* The depth from which specimens 
were obtained ranged from 324 to 60 fathoms. 
Spirontocaris pusiola (Kroyer). 
One or two specimens of this small species, as well as of Spirontocaris 
gaimardii (M.-Edw.), were observed in a gathering collected by the 
‘“‘Garland ” in about 32 fathoms, off Aberdeen, on October 12th. 
PANDALIDZ. 
Pandalina brevirostris (Rathke). 
This species was not very rare inthe gatherings collected off Aberdeen by 
the ‘Garland ” in October and November last. Dr. Calman has, in his 
paper on Pandalus,t described certain differences between this species 
and the others with which it used to be generically associated ; one very 
obvious difference between Pandalina, Calman, and the described species of 
Pandalus is, that Pandalina has a very short, nearly straight, rostrum, 
not unlike that of some of the species of Spirontocaris, while Pandalus has 
the rostrum elongated, more or less curved, and slender towards the distal 
end. 
Sub-order BRACHY URA. 
CorystTID&. 
Atelecyclus septemdentatus (Mont. ). 
This species was obtained in a gathering collected by the ‘St. 
Andrew” fifty miles south-east of Fair Island at a depth of about 65 
fathoms on October 19th. Rev. A. M. Norman describes Afelecyclus as 
a common species among the Shetland Islands. This species was also 
taken by the ‘‘Garland” in 60 fathoms, off Aberdeen, on October 25th. 
PORTUNIDA. 
Portunus puber (Lin.). 
Several specimens of the Velvet Crab, Portunus puber, were captured 
by Mr. H. C. Williamson in the Bay of Nigg during the month of June, 
1900. 
* Brit. Assoc. Rept., 1861; Trans. Tyneside Field Club (1862), p. 267, Pl. XII., figs. 
1-7. 
+ Calman, On the British Pandalide ; Ann. and Mag, Nat. Hist., (7), vol. iii., p. 37, 
Pls. I.-IV., fig. 4 (Jan., 1899). 
T 
