new Crustacea from Devon and Cornwall. 296 



Antennae stout, outer rami slender, of moderate length, and 

 apparently only two-jointed. 



The tirst pair of swimming-feet short and robust : outer 

 branches considerably shorter than the inner and furnished 

 with long, spiniform, coarsely plumose setse on the outer 

 margin ; inner branches apparently only two-jointed, the 

 first joint longer than the entire outer branches and strongly 

 dilated interiorly, as in the male of D. flava, second and 

 third joints coalescent and bearing a short stout terminal 

 claw and a moderately long spiniform seta. The next three 

 pairs are somewhat similar to those of D. tisboides. 



The fifth feet are moderately large ; primary joint a 

 broadly quadrangular lamelliform plate bearing five strong, 

 plumose, spiniform setse on the distal margin, which is 

 broadly truncate ; a comparatively wide space separates the 

 outermost seta from the one next to it. Secondary joint 

 subcylindrical, but becoming narrower from about the middle 

 of the joint to the end ; inner margin nearly straight, with a 

 short seta on the lower half; two stout spine-like setas spring 

 from the lower half of the outer margin and two from the 

 apex. 



Furcal joints very short. 



Male unknown. 



Hah. Dredged at Salcombe, June 30th, 1875. 



This form closely resembles D. laticaudata and D. cemula, 

 described by I. C. Thompson and A. Scott in their Report 

 on the Copepoda collected by Professor Herdman at Ceylon 

 in 1902. The two species, with that just described, differ in 

 some respects from the typical Dactylopusia, and, as suggested 

 by the authors referred to, " may some time require a separate 

 genus." The coloured band in this species appeared to be 

 quite unaffected by the long immersion in methylated spirit, 

 forming a marked contrast to the evanescent colour of 

 D. ornata. 



Genus Peltidium, Philippi, 1839. 

 Peltidium conspicuum, sp. n. 



A single specimen of an apparently undescribed Peltidium 

 was obtained in New Grimsby Harbour, Scilly Islands, 

 May 23rd, 1903. It was of a uniform dark purple or ruby 

 colour, and therefore conspicuous in the sample in which it 

 occurred. 



P. conspicuum has a general resemblance to P. purpureum, 

 Philippi, but is rather larger, and the carapace wants the 

 pellucid areas so characteristic of that species, being, on the 



