Mr. Patterson on the Cydippe Pomiformis. 97 



Dr. Sharpey remarks, " in the Beroe, and others of a similar form, the 

 cilia* point towards the closed extremity of the body, so that the opposite or 

 open end is carried forward." In the two species which have fallen under my 

 observation, the cilia, when at rest, point not to the closed but to the open ex- 

 tremity of the body, and as they strike downwards towards the closed extremity, 

 the animal is propelled forward in the contrary direction. 



The tentacula of these animals were, next to the cilia, the most attractive 

 parts of their organization. They were seldom displayed immediately after the 



detached, flexible, tapering, pointing upwards towards the mouth. At the upper extremity of each 

 of the shorter bands is a circular orifice, with a ciliated margin. From each of these four apertures 

 issues a singular aliform or auriform appendage ; these are regarded by Merteus as tentacula covered 

 with skin. Their appearance is extremely beautiful, both from their transparency and from the 

 numerous minute delicate pointed cilia along their edges. Their aspect was ever changing. When 

 first viewed they were pointed, erect, and hollowed longitudinally, so as to form a miniature repre- 

 sentation of the ears of a horse. At other times they extended horizontally from the body of the 

 animal, or were seen hanging loosely down hke the ears of a lap-dog, or curved like the petals of the 

 Martagon lily. 



Between the 6th and the 18th of June, 1838, 1 took thirty-two specimens in a canvass towing- 

 net, at the entrance to Lame Lough, County of Antrim. It had not fallen under my observation 

 during any of the three previous summers, during which I had paid occasional visits to the same loca- 

 lity ; nor was it met with after the date mentioned. On showing to Robert Ball, Esq. of Dublin, and 

 William Thompson, Esq. of Belfast, several drawings of it taken from living specimens, I had the 

 satisfaction of learning from these gentlemen its occurrence on other portions of the coast, it having 

 beeh found by them at the island of Lambay, near Dublin, on the 1st of June, 1838, (or about the 

 same time it was observed on the Antrim coast,) by Mr. Thompson in Strangford Lough, on the 

 3rd of July, (where it was in vain sought for by the writer on the 7th of August ;) and by Mr. Ball a 

 single specimen was taken at Youghal in June, 1837. 



My object in making known, at the present time, its existence on the Irish coast, is to enable me 

 to refer to it for the purpose of comparison and contrast with the C. Pomiformis. At a future period 

 I hope to bring forward a detailed account of its structure and economy. Meantime I refer it, though 

 with some doubt, to the genus Bolina of Mertens, (Mem. Acad. Imp. des Sciences St. Petersbourg, 

 t. ii. p. 513,) established by him as a connecting link between the Callianyrae and the true Beroes ; 

 and as it has not been recorded as British — as it is distinct from the two species of Bolina described 

 by Mertens — and is not noticed by any other continental writer, to whose works I have had access, 

 I propose to give it provisionally the specific name Hibernica. If undescribed, this title will record 

 the locality where it was at first observed ; if already known, it will prove a convenient synonym, 

 indicative of its occurrence on the Irish coast. 



• Article " Cilia" in Cyclopaedia of Anatomy and Physiology, 

 VOL. XIX. O 



