632 



Distribution. Bohuslan (Bruzelius), British Isles (Sp. Bate), Kattegat 

 (Meinert), coast of France (Chevreux), Mediterranean (Chevreux). 



2. Laetmatophilus armatus, (Norm.) 



(PI. 227, fig. 1). 



Cyrtophium armatnm, Norman, Last Report on dredging among the Shetland Isles; Report 

 of the British Assoc. f. the advanc. of Science f. 1868, p. 285. 



Syn.: Leetmatophilus spinosissimus, Boeck. 



Very like the preceding species, but differing in the armature of the 

 body. Cephalon with the dorsal tubercle acutely produced. First segment 

 of mesosome with 2 successive spiniform tubercles; 2nd segment with 3 

 similar projections, one median followed by 2 juxtaposed spines; each of the 

 succeeding segments of mesosome and the 2 anterior ones of metasome armed 

 with 2 juxtaposed dorsal spines. All appendages of the body closely agree- 

 ing in their structure with those in the preceding species. Body of a light 

 yellowish hue, with a number of transverse bands of a vivid orange colour. 

 Length of adult female scarcely reaching 4 mm. 



Remarks. The validity of this species would seem to be somewhat 

 questionable, since it agrees exactly with the preceding one in all anato- 

 mical details. It is, however, markedly distinguished by the peculiar armature 

 of the body, which has given rise to the specific name proposed by Norman. 

 The L. spinosissimus of Boeck is unquestionably the same form as that 

 recorded by Norman. I am myself much inclined to believe, that this form 

 may more properly be regarded as merely a deep-water variety of L. 

 tuberculatus. 



Occurrence. I have met with this form not infrequently along the 

 whole west coast of Norway up to the Lofoten islands, in depths ranging 

 from 50 to 300 fathoms. 



Distribution. Shetland Isles (Norman). 



Gen. 6. XenodlCG, Boeck, 1870. 



Body slender and narrow, smooth, with the metasome well developed 



Cephalon without any rostrum. Coxal plates small, and nearly equal-sized. 



imperfectly developed. Antennae very much elongated, with multi- 



