ADDENDA TO MARSIPOBRANCHII, ELAS- 
MOBRANCHII, ETC. 
Note. — The first forty-oue pages of the present work were printed in 
the spring of 1879, more than a year before work was resumed on the 
remaining part. Meanwhile numerous additions have been made to our 
list of sharks, which may be noticed here. A few errors may also be 
corrected. 
Page 2, last line: For “ FJpigonojyteriis’’ read EpigonicJithys^\ 
Page 3: For “2?. caribccum^^ read “1. B. lanceolatum (Pallas) Gray”. 
The Lancelet occurs also on the coast of Southern California. 
Page C: For “3. B. stouti Lockington” read: 
“ 3. B. domibeyi Miiller. 
“ Plum-color or purplish, the edge of the lower fold only pale. Gills 
usually 12-11. Teeth 10 in each series. L. 20 inches. Snout 20 times 
in total length; head to first gill- opening 4^; branchial region 8; tail 
8. Coast of California and southward ; not rare. Burrowing from the 
gill-openings or the eyes into the flesh of large fishes, and soon leaving 
nothing except the head, skin, and skeleton. 
“ {Gastrobranche domhey Lac. ; Muller, M4m. cle I’Acad. Berlin, 1834, 80: Bdellostoma 
polytrema Grcl.; etc.)” 
Page 7 : Lampetra {Bntosplienus)* tridentatns and L. jylumbea are per- 
haps generically distinct, as the lingual teeth in the former are pectinate 
and in the latter obscurely tricuspidate. The diagnosis of Lampetra 
should be modified accordingly. 
Page 8: “5. L. epiliexodon^'' and “6. L. astorV^ should be suppressed, 
as they are probably identical with E. tridentatus. 
Page 13: For “ Ginglymostomatid^ ” read “ ScYLLiiDAi] ” ; and 
under “7” for “ventrals” read “pectoral”. 
Page 15 : Somniosus microcepJiaJus is abundant on the Pacific coast 
from Cape Flattery northward. Twelfth line from the bottom : For 
“pectorals” read “ ventrals ”. 
Page 17: Instead of “Family VI. — Ginglymostomatidcv^\ etc., read: 
* Gill, MSS. Proc. Ac. Nat. Sci. Phila. 1862, 33, not characterized, {evtuq, within ; 
a<p7jv, wedge; from the small maxillary tooth wedged in between the others.) 
57 
