468 Part I1I.—Twentieth Annual Report 
(fig. 25); the appendages to the first abdominal segment in the male are 
small and carry three sete—two moderately long and one short. 
Dr. Eugene Canu has given a very full series of figures of the female, 
but he refers to the male as being unknown.* 
Dactylopus coronatus, T. Scott. 
1894. Dactylopus coronatus, T. Scott, 12th Ann. Rept. of the 
Fishery Board for Scot., pt. iii, p. 255, pl. ix., figs. 12-20. 
This species was dredged off the North Craig, Inchkeith, Firth of 
Forth, in 8 fathoms, on July 4th, 1901. The first specimens from which 
the species were described were also obtained in the Firth of Forth, but 
in the vicinity of the Bass Rock, near the mouth of the estuary. The 
Firth of Forth appears to be the only Scottish locality where this 
Dactylopus has been hitherto obtained. 
Cylindropsyllus levis, G. S. Brady. 
1880. Cylindropsyllus levis, G. 8. Brady, Mon. Brit. Copep., 
vol. iii., p. 30, pl. Ixxxiv., figs. 1-8. 
A male specimen of this large and somewhat remarkable species was 
obtained in some bottom material from Smith Bank, Moray Firth, on 
February 15th, 1901. 
MonNstTRILLIDA, 
The Family Monstrillide is represented in the copepod fauna of our 
seas from the English Channel to the Shetland Islands ; a few of the 
species appear to be somewhat local in their distribution, while others are 
co-extensive with the seas that surround our shores. The family com- 
prises the two genera Monstrilla, Dana, and Thaumaleus, Kroyer, and 
both are represented in the marine fauna of Scotland. Specimens be- 
longing to this curious group of copepods have been captured at odd 
times in the Firth of Forth almost every year since 1888.7 The first 
specimens obtained were ascribed to Cymbasoma rigida, I. C. Thompson, 
but they were shortly afterwards submitted to Mr. Gilbert C. Bourne, 
who was preparing a revision of the various forms which had recently 
been observed in the British seas, and his opinion of these specimens 
from the Forth estuary was that they were identical with Monstrilla 
helgolandica, Claus.t Other specimens have been obtained at odd times 
which appeared to belong to the same species, and also one or two belong- 
ing to a different species, and which were subsequently identified as the 
true Monstrilla rigida of I. C. Thompson. Two apparently adult speci- 
mens of a Monstrilla were obtained in some tow-net gatherings collected 
by the “Garland” on the 24th of July, 1901, and as they seem to differ 
from those previously mentioned as occurring in the Forth estuary, I 
give here a short description of them—they appear to be identical with 
the form described by Dr. Giesbrecht under the name of Monstrilla 
longiremis. 
Specimens of Monstrilla have also in recent years been obtained in the 
Firth of Clyde, and though usually they have occurred very sparingly, 
yet on one or two occasions large numbers have been obtained in a single 
tow-net gathering. In a small gathering of material, in which there was 
* Les Copép. du Boulonnais, p. 166, pl. iv., fig. 6-21 (1892). 
‘+ Annual Report of the Fishery Board for Scotland, Part III., p. 316 (1889). 
+ Notes on the genus Monstrilla, Dana ; Quart. Journ. Micr. Sci., (2), vol. 30, p. 515 
pl. xxxvii., figs, 14, 15 (1890). 
