ADDENDA TO MARSIPOBRAXCIIII, ELASMOBRANCIIII, ETC. 63 
tooth in upper jaw. T^yo small teeth near together in front, simple and 
pointed j two a little larger, behind and outside of these, then two 
others directly behind the first pair. Next, on each side, a tooth much 
larger, pointed, with a conspicuous cusp on the outer side at base, and 
one or more deuticidations beside. The other teeth are larger, similar, 
but more serrated and more oblique, approaching the lower teeth in 
form. The median tooth in the lower jaw is broad, with a small median 
cusp and two or three larger lateral cusps on each side. The other 
teeth, C on each side, are much broader than high, with about 4-G sharp 
outward-directed cusps. The first cusp is longest and bears a small 
tooth near its base. These teeth are quite similar and increase slightly 
in size outwards. Tail long, in total length, the caudal fin mostly 
below it. Anal small, just behind the small dorsal. Coast of California 
and northward ; common. 
“{Notorhynchus maculatus Ayres, Proc. Cal. Acad. Nat. Sci. i, 72 ; not Xotidanus indieus 
Cuvier, etc.)” 
Page 3G, fourth line : After “small” add “ or wanting”. 
Under “ * after “ thick ”, instead of “ usually with rayed ”, etc., read 
“with two dorsal fins”. 
Under “ ** ”, instead of the text, read : “ Tail with one dorsal fin, or 
none.” 
Page 38 : After “ JRMnohatiis productiis ” add : 
“5 Anterior nasal valve prolonged to the internal angle of the nostrils: snout not 
elongate. (.SyrWnna* Muller &, Henle.) 
“45 (&). K. exasperafMs Jordan & Gilbert. 
“Disk rhombic, about as broad as long. The snout prominent, but 
bluntish at tip, anterior margin of pectorals forming less than a right 
angle. Eyes rather large. Eostral ridges separate their whole length. 
Tail stout, depressed, with a narrow lateral fold, upper surface entirely 
covered with stout, close-set, stellated prickles of different sizes, largest 
on the bases of the pectorals and smallest on the outer edges of the fins, 
those on the tip of snout and anterior edge of the pectorals not enlarged! 
Stout, bluntish, slightly recurved spines present as follows : One at the 
upper anterior angle of the eye and two behind it; one large one at the 
middle of the shoulders, in front of which are two others ; two series on 
the shoulders outside the median line, the inner of two, the outer of two 
to four ; a series of about a dozen on the median line of the back and 
tail ; no lateral series on the tail. Sexes similar. Under side covered 
Plagiostomeu, 113: type SyrrUna coluinnce M. & H. (dv to- 
getuer; pfv, snout.) ^ ’ 
