CAMPYLASPID&—PSEUDOCUMID 307 
inner branch of the uropods is one-jointed. The telson is 
wanting. 
The single genus, Campylaspis, Sars, 1865, is well 
marked by the enormous development of the carapace, 
which usually bulges backward over some of the free 
seoments of the trunk. Sars has found in this genus the 
liver consisting of only a single pair of ceecal tubes instead 
of three pairs. Thirteen species have been described, 
eleven of them by Sars himself, the other two being 
rubicunda (Lilljeborg) and carinata, Hansen. Campylaspis 
costata, Sars, has been recorded from the Clyde by Mr. 
Thomas Scott, F.L.S. 
Fumily 6.—Pseudocumide. 
The first antenne have oue of the flagella rudimentary. 
The flagellum of the second antennz is composed of rather 
long slender joints. The anterior branch of the mandibles 
has few spines. The epipod of the first maxillipeds has 
only slight traces of branchial sacs. The first two pairs 
of perzeopods in the female and the first four in the male 
have well-developed swimming-branches. The male has 
but a single pair of well-developed pleopods. The inner 
branch of the uropods is one-jointed. The telson is dis- 
tinct, but very small, and unarmed. 
The family contains two genera. 
Pseudociima, Sars, 1865, has an eye; there are two- 
jointed rudimentary exopods on the third and fourth pairs 
of perzeopods in the female, and in the male rudimentary 
pleopods on the second segment of the pleon, and plumose 
setze in place of pleopods on the third, fourth, and fifth 
segments. Pseudocuma longicornis (Spence Bate) is an 
abundant British species, often spoken of as Pseudocuma 
cercaria (van Beneden), but Bate’s name is the older. In 
speaking of the species as British, it will be understood 
that there is no intention to exclude any number of other 
localities. Pseudocuma ciliata, Sars, is the only other 
species in the genus, and this it would be better to call 
ciliatus, since, if the gender of the generic name is 
ettended to, it would rather become ciliatum than ciliata. 
