DR. T. S. COBBOLD ON ENTOZOA. 167 
inch. On the whole, therefore, it is reasonable to conclude that the latter experiment 
confirms the statements of Leuckart and others as to C. pisiformis being the young of 
T. serrata, whilst both experiments satisfactorily demonstrate the breeding of 7. eueume- 
rina from a minute Cysticercus, probably hitherto unnoticed (figs. 73-79) *. 
The other species of Entozoa casually observed by me in Lepus cuniculus and Canis 
familiaris, ave Fasciola hepatica and Oxyuris ambigua in the former, and Ascaris margi- 
nata in the latter. 
Felis leo; Bos taurus; Ovis aries; Camelopardalis giraffa.—From a partial exami- 
nation of the viscera of two Lions, the only entozoon detected was Ascaris leptoptera. 
I have carefully dissected specimens of Fasciola hepatica and Cenurus cerebralis, but 
have no new facts to offer in respect of their organization or development. From a Giraffe 
I have obtained two forms of Cercariæ and numerous specimens of a very large fluke 
(Fasciola gigantica, mihi), details of which with eoloured figures have already been 
published t. ; 
Delphinus phocena.—1 have dissected, either in whole or in part, several individuals 
without detecting Entozoa; but from a specimen shot in the Firth of Forth, and kindly 
forwarded to me by J. Jardine Murray, Esq., in the month of April 1855, several 
interesting forms were obtained. The pulmonary vessels, both arteries and veins, and 
likewise the smaller bronchial ramifications on the left side of the thorax more especially, 
were extensively occupied by two species of Strongylus, or in other words, by the Pros- 
thecosacter inflexus and convolutus of Diesing; two examples of the former being likewise 
found in the ventricles of the heart. The small intestine of this Porpoise was com- 
pletely choked for the space of 8 or 9 feet by five very large tape-worms so closely 
impacted together that the gut presented all the appearance and firmness of a solid 
cylinder. Four of the worms measured severally between 7 and 10 feet in length, and 
the fifth about 18 inches. This worm constitutes a fresh addition to our sterelminthoid 
fauna. Accepting Prof. Van Beneden’s classification of the cestoid Entozoa, the name 
now proposed will place this new genus between his diphylloid Echinobothrium and the 
pseudophylloid Bothriocephalus. Diphyllobothrium stemmacephalum (mihi) may be briefly 
characterized as follows:—Length upwards of 100 inches, greatest breadth #ths of an 
inch; head arched, supported by a narrow neck, the latter rapidly increasing m breadth ; 
bothria two in number, compressed, shallow, subsessile, together forming a semicircular 
festooned crown; segments „45th to jth of an inch broad from above downwards, marked 
by 10 or 12 longitudinal furrows, the lower porder of each slightly overlapping the suc- 
ceeding segment ; reproductive orifices conspicuous, widely separated, both placed in the 
mesial line (figs. 79-83 inclusive). 
real species of Tape-worm be indicated, otherwise 
und Blasenwürmer, p. 98 et seq.) actually denies 
if proved correct, would almost 
* It is highly important that the cysticercal condition of every 
the value of our breeding experiments is lost. Von Siebold (Band- ev 
the hitherto recognized specific distinetions of five well-marked cestodes. His view, 
sanction a revival of the transmutation theory. 
T Description of a new Trematode infesting the Giraffe, &c. 
of the British Association for 1856. The fluke discovered by Professor Busk in 
Lankester) exceeds in size not only the Distoma gigas of Nardo, but this species 
it is generically distinct. 
Edin. New Phil. Journ. for 1855. See also Reports 
the duodenum of a Lascar (D. Buskii, 
also in a slight degree, from which 
