304 Dr. R. Koehler on the Littoral Fauna of the 



dant everywhere ; Marpliysa sanguinea, from the muddj sands 

 of Bordeaux and Rocquaine Bay ; Staurocephaliis ruhro- 

 vittatus, Gr., found at Bordeaux under pebbles incrusted with 

 calcareous Algte ; Lumhriconereis contoHa and L. huniitis and 

 Lysidice ninetta, species which are also common in Jersey. 

 Among the Nephthydians: — Nejjhthys Hombergi and.N'. longi' 

 setosa, the latter also living on the coast, and of which I found 

 a specimen at Grand Havre. Among the Chlorcemians : — 

 Siphonostomum uncinaium^ which is tolerably common, and 

 Clilorcema Dujardini^ Quatref., which occurs at Bordeaux in 

 company with the Sea-Urchins. Aonia foliacea is sometimes 

 met with in E,ocquaine Bay. 



I cite, only as a matter of form : — Cirratulus Lamarchiiy 

 Nereis cidtrifera and N. Diunerilii, Aricia Cuvieri, and 

 ArenicoJa piscatorum and A. ecaudata. 



The PliylloJocians are represented by PJiyUodoce laminosaf 

 which is rather less common than Eulalia clavigera, and Eteone 

 longa. I have found these three species at nearly all the 

 points that I have explored. Glycera capitata is exceedingly 

 common ; G. lapidum is sometimes associated with it. 



Among the iSyllidians I will cite : — Syll'ts arnica and 8. 

 divaricata, and Orubea fasiferaj besides a number of small 

 species identical with those of Jersey and which have not been 

 determined. 



Two species of Ch(etopterus live in Guernsey, namely 

 ChwAopterus Valencim'i, Quatref., and C. Qaatrefagesiij 

 Jourd. The former is very common in the port of St. Pierre 

 itself, in the portion included between the old port and the 

 jetty which bounds the new port on the north. This species, 

 which possesses a U-shapecl tube, is identical with that of 

 Herm. Ray Lank ester, who does not indicate Chcetopterus 

 at Guernsey, calls the animal from Herm G. pergamentaceus, 

 Cuv. It is not easy to determine whether C. pergamentaceus 

 and C. Valencinu are two identical forms ; but the specimens 

 from the port of St. Pierre and those of Herm present all the 

 characters of C. Valencinu indicated by Quatrefages. The 

 anterior region presents sometimes eleven, sometimes twelve 

 segments. In the tube of this Chcetopterus ^ in half the speci- 

 mens, HarmotJioe Malmgreni lives as a commensal ; one never 

 finds more than a single specimen at a time. 



The second Guernsey species of Chcetopterus which I have 

 found at Bordeaux is identical with that indicated at Jersey, 

 C. Quatrefagesii, the differential characters of which have 

 been clearly established by Jourdain. Its tube is never bent 

 into a U, but it is simply attached to the lower surface of a 

 stone ; it resembles a large Terebellan tube. Its structure is 



