00 
Hem. Le Pisoodonophis lloeveni est la seule espèce du genre où la queue est de la même lon- 
gueur que le tronc, caractère qui suffit pour reconnaître l’espèce au premier coup d’oeil. Du reste 
elle est voisine du brachysoma, mais s’en distingue cependant encore par sa tête notablement plus 
longue, par des rayons de la dorsale et de l’anale beaucoup moins nombreux, par l’absence d’é- 
chancrure de ses nageoires, par le petit nombre des rangées des dents, etc. Je l’ai dédiée à 
M.-J. van der Hoeven, le célèbre auteur du Manuel de Zoologie. 
Pisoodonophis brachysoma Kp, Uebers. Aale, Arch. 'Naturg. XXII, I p. 48; Calai. Apod. 
Fish. p. 19; Atl. Tab. CLX1I fig. % Mur. XVIII tïg. ± 
Pisoodonoph. corpore cylindraceo postice compresse, valde elongato, altîtudîne 22 circiter in ejus longitudine; capite acuto con- 
vexo, corpore non latiore, 10 circiter in longitudine corporis, 4'/ 3 circiter in longitudine apicem rostri inter et anum ; altitudine 
capitis 2 1 /* circiter in ejus longitudine; oculis diametro 10 et paulo in longitudine capitis; rostro paulo longiore quant basi lato, 
apice parum carnoso; naribus posterioribus vix ante oculura in labio superiore perforatis, anterioribus tubulo oculo breviore; rictu 
post oculum producto 3 fere in longitudine capitis; labio superiore ante et post nares posteriores papiila brevi conica; maxilla superio- 
re quant maxilla inferiore multo longiore; dentibus palatinis , nasalibus, vomerinis inframaxillaribusque graniformibus pluriseriatis ; den- 
tibus palatinis ante ai>icem laminae dentalis vomerinae desinentibus quadri- ad sexseriatis; dentibus nasalibus 18 cire, in tliurmam subova- 
lem ab apice laminae dentalis vomerinae spatio edentulo remotam collocatis; lamina dentali vomerina laminis dentalibus palatinis et infra- 
maxillaribus longiore , postice acuta , medio dentibus quiuque- ad sexseriatis; dentibus inframaxillaribus quadri- ad quinqueseriatis , symphysi 
nullis ; apertura branchiali semilunari ; cute laevi rugosula; linea laterali nueba incipiente, conspicua tubulosa; cauda postice compressa, 
apice subcornea subpungente; pinna dorsali quinta parte capitis longitudinis post aperturam brancbialem incipiente, corpore dupîo circiter 
lmmiliore, paulo ante apicem caudae desinente, postice parum emarginata; pînnis pectoralibus rotundatis 3 circiter in longitudine capitis; 
anali antice in dimidio posteriore 3 ;ie sextao corporis parte incipiente, corpore plus duplo lmmiliore, postice emarginata, radiis posticis 
radiis dorsalibus posticis oppositis; colore corpore profunde olivaceo , inferno dilutiore; pinna dorsali profonde viridl margîne late nigri- 
cante; pectoralibus analique nigricantibus. 
B. 23. D. 304 cire. p. 15, A. 200 cire. 
Syn. Ophisurus brachysoma Blkr, Derde bijdr. ichtli. Celebes, Nat. T Ned. Ind. III p. 776; Yerb. Bat. Gen. XXV Muraen. p. 55. 
Hab. Celebes (Makassar) , in mari. 
Longitudo specimînis descrîpti 740'". 
Hem. L’espèce actuelle et les trois qui suivent sont très-voisines les unes des autres, tant par 
les formes générales du corps, que par la dentition et par l’insertion des premiers rayons de la 
dorsale au-dessus des pectorales. On réussit cependant à les distinguer suffisamment en ayant 
égard à la hauteur relative du corps, à la longueur de la tête, de la queue, des pectorales et de 
la fente de la bouche, et au nombre, en gros, des rayons des nageoires. Dans le brachysoma et 
le Schaapi la longueur de la queue étant notablement moins de \ l /i fois celle du tronc, ces deux 
espèces se distinguent par cela du cancrivorus et du baccidens où le tronc mesure notablement 
plus de \ l /i fois dans la queue. Du reste le brachysoma se fait reconnaître du Schaapi par son 
corps plus raccourci, par sa tête plus petite, par sa bouche et ses pectorales plus grandes, etc. 
Pisoodonophis cancrivorus Kp, Uebers. Aale, Arch. INaturgesch. XXII, I p. 47; Cal. Apod. 
Fish. p. 15 fig. 9 (capul) ; Atl. Tab. CLXXXV fig. 5. Mur. XLI fig. 3 (cop. ex Hichd.). 
Descriptio llichardsoniana sequens; 
„ Nasal disk circular, arined with about fifteen crowded , round, rather flat-crowned teeth , of different sizes, separated from the 
dental surface of the vomer by a membranous line. The vomerine teeth stand about five abreast throughout, but the anterior part 
of the dental band , being composed of larger teeth, is wider. Palatine teeth smaller than the nasal ones, not quite so fiat on the 
crowns , and disposed so as to fonn an elliptical dental plate. There are six or seven teeth abreast in the widest part of the plate , 
and two or three posteriorly. The dental plates on the limbs of the lower jaw contain about five teeth in the middle, and taper, oft 
gradually towards the corner of the raouth. They are separated from one another at the symphysis by a smooth line. The upper 
jaw projects so much beyond the inaudible, that the whole nasal disk is anterior to the tip of the latter; and when the mouth is 
closed, the convex dental surface of the fore and of the mandible applies to the anterior vomerine teeth, which correspond with them 
in size, and are larger than the other teeth. 
The head is conieal, the snout small and acute, with a tlnck short tubular nostril on each side of it, but a little posterior to the 
extreine tip; and having an inclination downwards. The posterior nostril is under the eye, rather on the inner border of the lip, 
and is covered by a valve which gives a downward aspect to the opening. À small acute papiila overlies a minute notch on the 
edge of the lip between the nasal openings of each side, and behind the posterior nostril there exists a more minute papiila. The eye 
is rather small. There are four eonspicuous pores on each limb of the mandible, several on the under lip, and three on each side 
of the snout above and before the eye. The nape and throat are marked on each side by about twenty four fine longitudinal furrows , 
which run back to the gill-openings. Pectoral fin oval, of moderate size. 
Body nearly cylindrical, the back carrying its roundness far past the anus, and the tail, which is more compressed towards the 
tip, retaining its latéral convexity, its extreme tip being conical. The dorsal commences just behind the base of the pectoral, and 
carries its width well down the tail , as does also the anal. A slight increase in the breadth of the fins takes place just before they 
