GARMAN: THE CHIMAEROIDS. 271 
Species with depressed proboscis and with palatine and mandibular teeth 
bearing numerous tritors in several series on the sides of the plates. 
Harriotta raleighana Goode & Bean, 1894, 
CALLORHYNCHIDAE Garwm., 1901. 
Chismopnea, with a short proboscis ending in a retrorse leaf-shaped extrem- 
ity, with palatine and mandibular teeth bearing one or two large tritors on the 
side of each plate, with a notochord not surrounded by narrow cartilaginous 
rings, with a simple cartilage in each clasper of the male, and with lateral 
canals that in the adult become tubular, opening outward through pores. Only 
one genus now known. 
CALLORHYNCHUS Gnronow, 1754, 1763. 
From the teeth of the specimens at hand five species are to be distinguished. 
Callorhynchus callorhynchus Linne, 1758. 
Callorhynchus milii Bory, 1823. 
Callorhynchus smythii Benn., 1839. 
Callorhynchus capensis Dum., 1866. 
Callorhynchus tritoris Garm. 
Callorhynchus antarcticus La C., C. australis Shaw, and C. peronii Dum. ap- 
pear to be synonyms for C. callorhynchus. Callorhynchus tasmanius Rich. is 
not to be separated from C. milii.. Dr. Filippi, 1892, described two species 
without giving the dental characters; one of .these, his C. antarticus, resembles 
C. smythit, the other is much like C. callorhynchus. Dr. Alcock, 1891, secured 
indications of the existence of another species from the Bay of Bengal; it was 
named C. indicus by Garman, 1899, from the horny egg case, and is probably 
to be found only at great depths. The fossil species C. hectori Newton, 1876, 
is to be placed with C. capensis, at least until more than the dentition is known 
about it. 
CHIMAERIDAE Tuten., 1828. 
Chimaerae THIEN., 1828. 
Chimaeridae Bonap., 1831. 
Chismopnea without a proboscis, with tritors situated anteriorly on the 
edges of all the dental plates, with hemispheres and olfactory bulbs of the brain 
in contact, with a notochord surrounded by narrow cartilaginous rings, with a 
trifid cartilage in each clasper of the male, and with sulcate lateral canals. 
