ADDENDA TO REPORT ON SHETLAND CRUSTACEA, ETC. S41 
of the Somersetshire Archeological and Natural History Society,’ vol. xiii. 
1865-66. There are also some forms of Lagenu, Cristellaria, Uvigerina, and 
Bigenerina, which seem sufficiently distinct from previously recorded British 
ones to be described under separate names; but I believe in no other order 
is there so much difficulty in defining the limits of species and varieties, and 
consequently so much danger of confusion in nomenclature. A more com- 
plete investigation of the dredgings will, I have no doubt, afford additional 
novelties, 
In the list and remarks appended to my former Report (1867), I endea- 
youred to give as complete a view of the Shetland Foraminifera as our pre- 
sent knowledge permitted, so that a comparison can be made of their relation 
to those of the whole kingdom and of some neighbouring countries. 
Addenda to the Rev. A. M. Norman’s Report. 
Cidaris papillata, Leske. I find that by some accident I have omitted to 
notice this species in the enumeration of species. It appears to be 
absent to the east and north-east of Shetland, as during our dredging 
in those directions we never saw any trace of it, and the fishermen at the 
Out Skerries were unacquainted with it. The specimens which have 
been procured through fishermen have been all from the western coast ; 
and we had the pleasure of dredging the Piper in some numbers, 25-35 
miles N.N.W off Unst in 110-170 fathoms in company with Spatangus 
meridionalis and other rarities. They appear to be very sluggish in 
their movements, as though kept alive for some time in a large tub of 
water, they showed very little inclination to change their position; of 
course, however, they found themselves placed in very unusual and 
probably very uncongenial conditions. 
Amphiura tenuispina, Ljungman, “ Tilliigg till kannedomen af Skandinaviens 
Ophiurider,” Cifvers. af k. Vet.-Akad. Forh. 1863, p. 360, pl. xv. fig. l= 
Amphipholis elegans var. tenuispina, Ljungman, ‘ Ophiuroidea Viventia 
huc usque cognita,” Cifvers. af k. Vet.-Akad. Forh. 1866, p. 312. The 
specimens of ‘* Amphiura elegans ”’ recorded in the foregoing Report from 
“40 fathoms, St. Magnus Bay,” belong to A. tenwispina, Ljungman. 
That author at first described this form as a species, but in his more 
recent memoir considers it to be a deep-water form of A. elegans. On 
the other hand I at first regarded it in the latter light, but now think it 
may be a distinct species. For its characters I must refer the reader to 
Tjungman’s paper. I find specimens of this Ophiuridan among the 
Kchinodermata procured in the ‘ Lightning’ expedition, and sent to me 
for examination by Messrs. Carpenter and Thomson; and dredged 
lat. 59° 40’ N., long. 7° 20' W., on a bottom of fine mud in 530 
fathoms and a temperature of 47° Fahr. 
Pocillipora interstincta, Fleming, Brit. Anim. p. 511; Johnston’s British 
Zoophytes, p. 194, This coral, found by Dr. Hibbert in the Shetland sea, 
has been an obscure species of which we have been able to make out 
nothing hitherto. I have recently, however, seen specimens of a highly 
interesting coral procured by Messrs. Carpenter and Thomson in the 
‘ Lightning’ expedition off Cape Wrath, lat. 59° 5’ N., long. 7° 29' W., 
