174 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



twenty-five species of hydroid zoophytes and twenty- 

 three species of polyzoa. 



III. From March 29 to April 4 the Committee were 

 working from Port Erin, and had the s.s. ' Lady Loch ' 

 hired for two of these days. One day was spent in dredg- 

 ing on the rocky bottom round the Calf and near the 

 Chicken lighthouse, and in exploring the caves about 

 Spanish Head and the Stack Eock. These caves can only 

 be entered in a boat in calm weather at low tide; and the 

 sides and roof are so closely covered with masses of bright' 

 red ascidians {Polycarpa glomerata), black and white 

 sponges {Pachymatisma johnstoni and Stelletta collingsi), 

 and tufts of Tubular ia indivisa, that scarcely any rock is 

 visible. Amongst the more noteworthy animals dredged 

 round the Calf and obtained on the neighbouring shores 

 were the rare calcareous sponge Ute glabra, Corynactis 

 viridis, Hyalincecia sp., Depastrum cyathiforme, Linens 

 gesserensis, Dinophilus toeniatus (breeding at Easter), 

 fifteen species of hydroids, including Aglaopheiiia tubuli- 

 fera, Halecium tenellum, Lafo'i'a diimosa form robusta, L. 

 fruticosa, Guspidella costata and C. liumilis ; the brachio- 

 ^odi Crania anomala ; the Crustacea Xantho tuberciUata, 

 Ebalia tuberosa and E. tumefacta, Galathea dispersa (one 

 with a parasitic Bopyrian), Spirontocaris spinus (one with 

 a parasitic Bopyrian), Janira maculosa, Tritoita gibbosa, 

 ADiphithoe rubricata, Aora gracilis, Conilera cylindracea, 

 Moera otkonis, Metopa (? n. sp.), and others ; the mollusca 

 Sjnrialis retroversus, Bissoa cingulus, var. rupestris, 

 Fissurella groeca, Emarginula fissitra, Cliiton loevis, 

 Pleurobranchus pluviula , Lima elUptica ?ind L. loscombii, 

 Astarte sulcata and ^4. triangularis, Solecurtus antiquatus, 

 Lyonsia norvegica, Pecten tigrinus and P. testce, Kellia 

 suborbicularis, Pandora inoequivalvis, Lamellaria per- 

 spicua, Circe minima and Thracia distorta, the two last 



