Bay 
Synopsis Of the Species. 
I. Colour white with black markings. No scales. Posterior 
maxillary teeth scarcely oblique, no conspicuous larger 
ones intermingled. In the mandible 62—66 teeth in a 
continuous series behind the hindermost fang. 7 lumi- 
NOUSMOUCAMS MIME T Nem lateral eSerles a lemeie) lel ciel omelcw aire C. signata p. 125. 
II. Colour blackish or brown. Scales large, but very thin 
and deciduous. 8—g luminous organs in the lateral series. 
a. Anus slightly behind ventrals, nearer to them than 
to anal. Posterior maxillary teeth oblique, conspi- 
cuously larger teeth between them. In the mandible 
a continuous series of 90—100 vertical teeth be- 
hide the shindermosi tale.) ery ts suet C. microdon p. 126. 
é, Anus in the middle between base of ventrals and 
anal. Posterior maxillary teeth very obliquely 
directed forward, gradually increasing in size back- 
ward, but without larger teeth between them. In 
the mandible a series of about 70 teeth behind 
taemhimdermostefang.ts ters: shel sls =) mel ssn = = C. acclinidens p. 127. 
1. Cyclothone signata Garman. 
Cyclothone signata Garman, Albatross Exp. XXVI. Fishes, 1899. p. 246. 
Cyclothone signata Brauer, Deutsche Tiefsee-Exp. Tiefseefische, 1906, p. 78. 
Cyclothone signata Zugmayer, Campagnes Scient. Monaco XXXV. IQII, p. 95. 
Cyclothone signata Max Weber, Siboga-Exp. Fische, 1913, p. 19. 
B. 1213; D. 12—14; A. 19—20; P. 9—10; V. 6—7. 
Height 7, head about 4'/,, eye 12, twice in interorbital 
space and about twice in snout. Lower jaw prominent with 
a ventrally directed spine at the symphysis. Front flat, late- 
rally with 3 short blunt tubercles. Origin of dorsal and anal 
opposite, before beginning of last '/, of length. Ventrals be- 
fore middle, extending on anal. Pectorals nearly reaching to 
ventrals. Anus before middle of body, slightly behind ven- 
trals. Intermaxillary with 6—7 nearly equal, short teeth. Maxil- 
lary with a row of 15—-16 teeth, the teeth of the anterior '/, 
of the row looking vertically downward, the remaining incre- 
asing in size posteriorly, slightly directed forward. Mandible 
with 62—66 teeth, in the anterior '/, 2 larger canines, sepe- 
rated by smaller teeth, the teeth behind gradually increasing 
in size posteriorly. Vomer edentulous. Palatines with 3—4, 
