black-mouthed dogfish. 
19 
file form of these cases differs considerably-as well from those 
ground Sharks, as from the purses of the Kay 
a figure of one, in which 
he tendrils are at one of the ends only, and so short as to 
e incapa le of that entwining action which is the principal 
haracter of the egg-case of the Nurse and Kough Hounds. 
what furr^’ it to any fixed substance, and 
?ves I fZ"" - -certain. Mr. Lowe also 
is at variance Cith MsTJ’ '^^i'°^'t^"'‘ately his description 
the natural size, when it° fill’s ^f‘“/cing marked as of 
dimen. io.s-an inch a^a b IF 
■"'ith a smoofTi cT^' * r ^ half an inch broad; 
1 a smooth shining surface a-n^ ^ ^ 
or horn colour. It is of v»l, n ^ 
there is in it a v' 'ni v on one account; for 
s I L m f ' - tendril is placed, 
as m the purse of the Kough Hound. 
was in my original description was taken, 
“it poTlriv!" »■“ »” rather 
quarter, frnm if’ ™°“' Protriiiled one inch and three 
n a «nl t ‘T°' =)"t "“‘til* »»• inrlt 
other on the n t e snout, double one bencatli linear, the 
in the Lid iZh'"’, 1 "“S' Pra-i-aqt, a depression 
beta '.LTotZ l 1 -“'.ci-e 
inch and three quarters I'idt ST’ 
at each side of the base of pJ b t numerous, small, sharp, 
spiracles five, open The b V * 1 °^^ ^ small sharp process; 
t head, .h.rn rout thenht hat- “ 
forward. Pectoral fins wide much I't .1 “ 
Dog. The first dorsal begin, ’bXod ,1 
inches from the snoutt the second at' 'T'™’ 
half— both rather small; Tentrals ten ' Z Z larhes and a 
anal fin four inches loL rtherL" " 
opposite the end of the sel.Z L C 
Ltd™ tt:;;'';LTei:tt,t:rL"'5 ‘“t' 
under lobe rather narrow its course, expanded beneath® thi 
upper rtdge of the snpenor lobe has a double row of prickles 
nointmg outward and downward on each side; lateral line 
