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 MARINE ZOOLOGY 37. Ophiopsila aranea, Forbes. N. unc. Mewstone Ledge and Stoke Pt. Gnds., Plymouth (M.B.A.) ; one spec. Polperro (Robinson) ; two in trawl refuse, Mevagissey ! 38. Ophiothrix fragilis, Mull. Occurs along the S. coast and locally on the N. ; often plentiful and at times abund. under big stones, in crab pots and irregularly from all depths to 40 fm. ; Scilly! 39. Echinus acutus, Lamk. Gen. dist. Plymouth Gnds. 15 to 35 fm., commoner in deeper water where it replaces E. esculentus (M.B.A.) ; Pol- perro, trawl refuse Mevagissey! locally Falmouth B. ; one spec. Mount's B. (Tregelles) ; one adult and one young spec, from 30 fm. off Menewethan, Scilly (Carus) 40. E. miliaris, Leske. C. along S. coast in rock crevices between t-m. to 35 fm.; Scilly 41. E. esculentus, L. Occ. Queen's Gnd., c. outside Plymouth breakwater in 15 to 35 fm. (M.B.A.) ; c. Polperro and in trawl refuse, Mevagissey and Falmouth ; abund. Penzance at all depths, weed gatherers often collecting numbers in from I to z fm. (Tregelles) ; c. at Scilly, where in April, 1904, spines in remark- able abund. were found in the sand in depressions among the lower rocks on Outer Innisvouls ! [E. melo, Lamk. Forbes (Rep. Brit. Assoc. 1855, p. 153) speaks of an Echinus found by Peach on the Cornish coast as 'apparently identical with E. melo of the Mediterranean,' but doubt has been expressed as to the occurrence of this species in the British Isles.] 42. Strtmgylocentrotus drocbachiensis, Mull. R. in trawl refuse at Falmouth (Cocks) 43. 5. lividus, Lamk. N. c. in trawl refuse Falmouth Harb. (Cocks) 44. Echinocyamus pusillus, Milll. N. unc. on gravel bottom in 10 to 35 fm. Plymouth district (M.B.A.); Polperro ; Falmouth ; f. c. Mount's B. and at Scilly ; the white shells denuded of spines at Porthcurnow and elsewhere! 45. Spatangus purpureus, Mull. F. c. in coarse sand and gravel on most of the ' grounds ' in Ply- mouth district (M.B.A.) ; Polperro, Meva- gissey and Falmouth in trawl refuse ; Helford ; at Penzance brought in by the trawlers from deep water (Tregelles) ; n. unc. locally, Scilly ; Perranporth ! 46. Echinocardium cordatum, Pennant. Occ. Cawsand B. and outside the Plymouth Breakwater in 15 to 35 fm. on fine sand (M.B.A.) ; Meva- gissey ! local in Falmouth B. ! v. c. in Am- phiura chiajii sand, Mount's B. ; F. W. Millett described them on one occ. as ankle-deep between Marazion and Penzance (Tregelles) 47. E. pennatifidum, Pennant. N. unc. Rame-Eddy- stone and Looe-Eddystone Gnds., Plymouth (M.B.A.) 48. E. flavescens, Mull. R. Looe-Eddystone Gnds. with E. pennatifidum (M.B.A.) TURBELLARIA The Turbellaria or flat-worms of Cornwall have up to the present received very little attention. Dr. Cocks recorded a few from Falmouth, but the only publication of importance on the subject is 'The Turbellaria of Plymouth Sound,' by Dr. F. W. Gamble (Journ. Marine Biol. dssoc. iii). The following is a list of the species recorded by Dr. Gamble, all of which were obtained in the Plymouth district. A few additional localities have been added where there was no doubt about the identification : Proporusvenenosus, O. Schmidt Monoporusrubropunctatus,Q. Schmidt Aphanostoma diversicolor, Oersted elegant, Jensen Convolute softens, v. Graff paradoxa, Oersted, Falmouth flavibacillum, Jensen Microstoma groenlandicum, Lev. Pnmesostoma marmoratum, Schulze ovoideum, O. Schmidt solea, O. Schmidt. Falmouth ; Helford - agile, Levinsen Byrsophlebs Graffi, Jensen - intermedia, v. Graff Proxenetes cochlear, v. Graff Jtabellifer, Jensen Mesostoma neapolitanum. v. Graff P seudorhynchus bifidus, Mclntosh Acnrhynchus caledonicus, Claparede Macrorhynchus naegeli, Kolliker croceus, Fab. belgolandicus, Metschnikoff Gyrator bermaphroditus, Ehrbg. Hyporhynchus armatus, Jensen ptnicillatus, Schmidt Provortex balticus, Schultze affinis, Jensen rubrobacillus, Gamble. Encysted stage c. Pentuan, Falmouth Fecampia erythrocephala, A. Giard Plagiostoma dioicum, Metschnikoff elongatum, Gamble pseudomaculatum, Gamble sagitta, Uljanin caudatum, Levinsen vittatum, Frey u. Leuck.irt. Polperro ; Falmouth ; Hel- ford Koreni, Jensen Plagiostoma siphonophorum, Schmidt girardi, Schmidt Vorticeros auriculatum, O. F. Muller. Pentuan ; Falmouth luteum, v. Graff Enterostoma austrincum, v. Graff jingallianum, Claparede CyRndrostoma quadrioculatum, R. Leuckart inerme, Hallez elongatum, Levinsen Monoophorum striatum, v. Graff 129 Monotus Rneatus, O. F. Muller fuscus, Oersted albus, Levinsen Automolus unipunctatus, Oersted horridus, Gamble ophiocephalus, Schmidt Fovia zffinis, Stimpson. Whitsand B., E. ; Pentuan ; Falmouth Cryptocelis alba, Lang Leptoplana tremellaris, O. F. Muller. C. Falmouth, Helford draebachensis, Oersted fallax, Quatrefages Stylochoplana maculata, Quatrefages Prostheceraeus vittatus, Mont. Pol- perro ; Gyllyngvase, Fal- mouth Cycloporus papilksus, Lang. On Botryllus,Falmouth and Scilly Eurylepta cornuta, O. F. Muller. Mevagissey ; Falmouth B. Qligpcladus sanguinolentus, Quatre- fages. Falmouth B. Stylostomum variable, Lang. Prosthiostomium siphunculus, Delle Chiaje '7