A HISTORY OF DEVONSHIRE 



Sub-class ENTOMOSTRACA {continued) 



Order Cofepoda {continued) 



strange methods for obtaining food and lodging and 

 other domestic advantages, any further allusion to 

 which must be reluctantly relinquished. On the whole 

 subject of the Copepoda of Devon a large fund of 

 information has been supplied in the work already 

 mentioned from the pens of Canon Norman, F.R.S., 

 and Dr, Thomas Scott, LL.D. Conditions of time 

 and space are in league to prevent any adequate use 

 now and here of this important contribution. But 

 attention may be called to the fact that in the family 

 Thalestridae the authors have established two new 

 genera, one called Megarthrum, with reference to an 

 exceptionally large joint in the first foot, the other 

 Vallentinia, as a tribute of well-deserved respect to 

 Mr. Rupert Vallentin, F.L.S. 



Sub-class THYROSTRACA 



Family Balanidae 



Balanus tintinnabulum (Linn.). On ships. Torbay 

 (Mrs. Griffiths) » 



— spongicola. Brown. On upper valve of Pecten 



opercularis. Rame-Eddystone grounds (Pace) 



— perforatus, Bruguiire. Of this species Parfitt 



mentions also var. angustus (Gmelin) on rocks 

 between Seaton and Beer ; var. Cranchii, Leach, 

 between Exmouth and Budleigh Salterton ; and 

 describes var. depressus on rocks at Torquay ; 

 and var. D., very much like B. laevis, from 

 back of Corystes cassivelaunus 



— porcatus, da Costa. Teignmouth (Parfitt). Dredged 



off the coast (Mrs. Griffiths) 



— crenatus, Bruguidre. Torbay (Mrs. Griffiths). 



On a large lobster taken off Torbay (Parfitt) 



— balanoides (Linn.). On old shells (Parfitt), rocks 



between tidemarks in the Sound (Pace), 

 Darwin's var. (a) 'on the shore about three 

 miles to the right of Shaldon (Parfitt) 

 Acasta spongites (Poli). Acasta Montagui, Leach. In 

 sponges, Torbay (Walker) : in Halichondria 

 panicea, Exmouth (Parfitt) 



Family Creusiidae 



Pyrgoma anglicum, G. B. Sowerby. On Caryophyllia 

 smithii (invariably, Parfitt) ; in Plymouth 

 Sound (Holesworth, Todd, Pace) ; Barricane 

 Bay, N. Devon (Parfitt) 



Sub-class THYROSTRACA {continued) 

 Family Chthamaudae 

 Chthamalus stellatus (Poli). Rocks between tide- 

 marks, N. and S. Devon (Parfitt, Pace, Gar- 

 stang, Stebbing) 



Family Verrucidae 

 Verruca strOmia (O. F. Muller). On roots of Lami- 

 naria, upper valve of Pecten maximus, etc. 

 (Parfitt, Pace) 



Family Lefadidae 



Lepas anatifera, Linn. On floating timber (Parfitt, 

 Todd, Pace) ; at Ilfracombe an enormous 

 number surrounding an old floating bottle 

 (Stebbing) 



— anserifera, Linn. On ships ; ' taken on driftwood 



by Col. Montagu, on the south coast ' (Parfitt) 



— pectinata, Spengler. On various floating objects. 



Torbay (Mrs. Griffiths) 



— fascicularis, Ellis and Solander. On floating 



objects, the peduncle often surrounded by a 

 vesicular ball of cement tissue. Bovisand (Miss 

 H. Bellamy) 

 Conchoderma auritum (Linn.). Lepas comuta, Mon- 

 tagu. Stranded vessel, coast of Devon (Montagu) 



— virgatum (Spengler). Lepas membranacea, Mon- 



tagu. On stranded vessel, S. Devon (Montagu) ; 

 on wreck, Torbay (Mrs. Griffiths) ; Exmouth 

 (Mrs. Luscombe) ; Teignmouth, alive on ship's 

 bottom (Parfitt) 



Family Pollicipedidae 



Scalpellum vulgare. Leach. On various Hydroids, 

 Plymouth, Torbay (Parfitt, Todd, Pace) 



Pollicipes cornucopia. Leach. On vessel towed into 

 Dartmouth Harbour (Montagu) ; Goodrington, 

 Torbay (Mrs. Griffiths) 



Family Tryfetesidae 



Trypetesa lampas (Hancock). Aktppe /., Hancock ; 



Trypetesa /., Norman. Taken, embedded in 



Fusus antiquus and Buccinum undatum, off 



the Eddystone Lighthouse, by Mr. Spence Bate 



Family Peltogastridae 



Peltogaster paguri, Rathke. On Eupagurus bern- 

 hardus. Saunton sands, N. Devon (Stebbing) 



Pachybdella carcini, Thompson. SaccuSna c, Thomp- 

 son. On Carcinus maenas, Starcross (Norman), 

 Plymouth (Pace, Garstang) 



Considering the extensive material with which this chapter has been forced to deal it is perhaps 

 fortunate that the freshwater Cladocera, Ostracoda, and Copepoda of Devon have been so long 

 neglected. They will in course of time tend largely to inflate the record of Devonian carcinology. 

 The most liberal allowance of space for this subject has still made it necessary to offer the reader 

 rather a sort of scientific pemmican than anything that can assume the guise of literature. Those 

 who remember the fascinating difFiiseness of Gosse and Kingsley will be inclined to frown and 

 then to smile at the contrast between that recollection and the uninspiring columns here presented 

 of technical names and recurring references. None the less, the eager student will find in these 

 names and notes finger-posts to guide him through a country, diflicult but delightful to explore, one 

 which has been opened up by men of energy and genius, yet one no doubt still full of hidden 

 treasures and unrevealed beauties. 



' Parfitt in Trans. Devon. Assoc, iv, pt. 2, 548 (1871) ; to this paper and to the list in the Jeum. Mar. 

 Biol. Assoc, for 1904, these records of Cirripedes are almost entirely due. 



276 



