380 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [92] 
65.—MARCGRAVE’S DESCRIPTION OF THE SAIL-FISH. 
GVEBVCV BRASILIENSIBUS: Lusitanis Bicuda; Piscis rostratus; ob- 
longo & ferme tereti est corpore ut Dorada; capite porcino, rostrato, 
cauda in duo cornua deducta ut Abacara rostrum acutum, osseum, 
durum: partis superioris longitudo tredecim digitorum: utramque au- 
tem rostri partem movere potest. Branchias habet amplas: os interius 
orbicularis figura, in medio sui hyperbolico foramine; lingua oblonga, 
alba, dentibus omnino caret. Oculos habet solidi magnitudine, pupilla 
erystallina, circulo argenteo. A rostri insertione caput in altum assur- 
git, ut in Dorada mare: est autem caput ab oculis ad occiput longum 
septem digitos, novem altum. 
[Length occiput to origin of tail 4 feet. Tail-lobes 18 inches; 2 flaps, 
6 fins. Pectoral 11 inches, 2 broad at base. Ventrals black, hard like 
cuttle-fish bone, whip-like, 19 inches, closed in furrow (received in fur- 
row). First anal 6 inches, second anal. 
Dorsal 3 feet base, membrane like parchment, with ribs, received in 
furrow, 14 feet high. Skin hard, brownish. No scales, but with spine- 
like bodies. Belly and throat white, sides silvery and ashy, back sil- 
very grayish brown. Fins grayish silvery. | 
Carnem copiosam habet, non spinosam, pinguem, non glutinosam, 
ideo ad commededendum aptiorem quam caro Marsoram. 
66.—DESCRIPTIONS OF TETRAPTURUS ALBIDUS AND T. 
AMPLUS. 
By Prof. FELIPE POEY. 
The type of Tetrapturus albidus is a male 2,150 millimeters in length; 
this is the ordinary size; the female has the abdomen a little more con- 
vex and the body slightly more elongated; the general form is length- 
ened; the nape elevated, so that the greatest height is about the oper- 
culum; this height is 2; less at the tip of the opercule, and the height of 
the body at that point is contained about 10 times in the total length of 
the body. The head, from the extremity of the lower jaw, is contained 
in the body-length more than 4 times; the eye is placed midway be- 
tween the margin of the operculum and the tip of the lower jaw. From 
the tip of the lower jaw to the end of the-upper jaw, or snout, the dis- 
tance is equal to the height of the head. The maxillary extends beyond 
the orbit a distance equal to 4 of the diameter of the eye; at a distance 
of 3 of the diameter of the eye, in front of it, are placed the nostrils, 
having two orifices, which are separated by a cup-shaped space, hut are 
contained in a commen cavity; the gill-membrane has a squarish open- 
ing below the suboperculum; the palatine bones have a narrow band of 
asperities upon them; the vomer does not project into the mouth, but 
the membrane which covers the palate is rough, the very minute points 
