Jllarme Zoology. 187 



examples of the marine fauna of this part of the coast. A great 

 extent of reefs was exposed at low spring tides, exhibiting Corals 

 of the groups Astrxa, Alcandrina, Poritcs, Tiibipora, Orbicella, 

 and Caryopliyllia, besides a profusion of soft Alcyonarian Polyps. 

 Holothurians were abundant, as were also some large Tubicolous 

 Annelids, with very long gelatinous threadlike tentacles. We 

 also got a few Po/ynoes, and several other annelids of the family 

 Avipliinomidce. A Sqnilla, with variegated greenish markings on 

 the test, made itself remarkable by the vigour with which it 

 /esented one's attempts, for the most part unintentional, to invade 

 the privacy of its retreat. An active black Goiiiograpsus was a 

 common object on the reefs, and the widely distributed Grapsus 

 variegatus was also met with. Haswell obtained from the interior 

 of the large Pinna shells examples of a curious small lobstcr-likc 

 crustacean, which is of parasitic — or perhaps rather commensal — 

 habit, like Pinnotheres. Not uncommon in the rock pools was a 

 bivalve shell of the genus Lima, which on being disturbed swims 

 about in a most lively manner by flapping its elongated valves, 

 exhibiting at the same time a scarlet mantle fringed with a row 

 of long prehensile tentacles. Shells of the genera Area, Tridacna, 

 and Hippopiis were common, and three or four species of Cyprcea 

 were seen. 



We dredged several times with one of the steam cutters in 

 depths varying from twelve to twenty fathoms, obtaining several 

 species of Comatulas, two or three Asterophytons, Starfishes, 

 Ophiurids, Echini of the genera Salntacis and Goniocidaris, small 

 Holothurians, many species of Annelids, two or three Sponges, 

 a great variety of handsome Gorgonire, Hydroids of the group 

 Sertiilaria and Plumidaria, Polyzoa of the genera Eschar a, Retepora, 

 Myriozouin, Cellepora, Bifliistra, Salicornaria, Crista, Scriipoccllaria, 

 Aviathea, etc., and Crustaceans of the genera Myra, Hiastemis, 

 Landiris, Alphcus, Huenia, and many others. Among the Annelids 

 was one with long glassy opalescent bristles surrounding the oral 

 aperture, and projecting forwards to a distance of one and a half 



