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Show 1873.] DR. T. s. COBBOLD ON N E W OR RARE ENTOZOA. 741 I obtained very satisfactory evidence of the existence of a minute terminal papilla, whose breadth scarcely exceeded the Bi^ inch. I have no doubt that this papilla is connected with a caudal gland; but I could not obtain a clear definition of the parts beneath the true skin. Lastly, I may add that immediately above the bursa I noticed a series of lines obliquely directed upwards, representing as many parallel foldings of the integument. The general character of these markings in all respects corresponded with the similar appearances figured and described by Eberth in Enoplus, Enchelidium, and other nematode genera. 3. FILARIA HEBETATA, sp. nov. In the month of July of the present year I received from Mr. Millen Coughtrey (then acting as Demonstrator of Anatomy in the Liverpool School of Medicine) the heart of a Seal, together with a communication, from which I further learn that Mr. Coughtrey was himself indebted to Mr. T. J. Moore, the well-known Curator of Sir William Brown's Museum, for the opportunity of dissecting the animal in question. Mr. Coughtrey remarks that the Seal was an adult male example of Stemmatopus cristatus, or Hoodcap, the occurrence of which is very rare on the British coasts. The animal was captured in February at Frodsham, on the Cheshire side of the Mersey, and died at Widnes in the beginning of June, having been exhibited in the county during the interval. Mr. Coughtrey adds :- " I made a hurried, but careful post mortem examination, since it was suspected that it had died of poison. The dissection embraced every organ except the brain and spinal cord. The abdominal viscera were free from cysts or any appearance of worms. Within the stomach were three mackerel, in different stages of digestion. O n removing the tongue and pharynx, with the larynx and trachea, I perceived a nematoid worm grasped by the rima glottidis, one half of it being within the posterior buccal orifice, and the other half within the larynx. I a m sorry to say it was afterwards lost, through the carelessness of an attendant. The worm was about four inches in length, much thicker than those in the heart, and of a dusky hue. The thoracic viscera were removed en masse, when the lungs were found studded throughout with miliary tubercle. The worms were chiefly in the right ventricle of the heart, entwined and laced amongst the columnee carneae, being embedded and surrounded by blood-clot. The left side of the heart was quite free from worms; and there were none in the pulmonary artery or other large vessels. W h e n fresh the worms were extremely elastic, so that they might be stretched to half their length beyond the natural size and yet would not break. The muscular system generally was healthy. I have sent you all the worms except two, which I preserved, and afterwards gave to a friend." In offering this abstract of M r . Coughtrey's lengthened and interesting account of his examination, I have purposely selected only such remarks as seemed to bear more or less upon the question of parasitism ; and in doing so I have adhered very closely to the actual |