774 REPORT OF THE HARVARD AFRICAN EXPEDITION 
I fired at it but it disappeared. Two natives, carrying axes in their teeth, clam- 
bered up and cut off the limb but the reptile retreated to the proximal end. On 
chopping this open the creature was dispatched and before skinning was found 
to measure 2430 mm.” (just under 8 feet). 
Dendraspis viridis (Hallowell) 
1 ex. (M.C.Z,. 22533) Gbhanga. 
1 ex. (M.C.Z. 22534) Paiata, St. Paul’s River. 
1 ex, (MC.Z. 22535) Plantation No: 3; Du‘River. 
“One of these snakes crawled beneath the ground-sheet of Dr. Shattuck’s 
tent and we slowly pulled it out by the tail. It measured six feet eight and a 
half inches.”’ ‘The blood contained numerous free-swimming forms of a haemo- 
gregarine.” ‘‘The Gbanga specimen was seven feet and five inches in length.” 
VIPERIDAE 
Causus rhombeatus (Lichtenstein) 
1 ex. (M.C. Z. 22538) Medina. 
1 ex. (M.C.Z. 22539) Paiata, St. Paul’s River. 
9 ex. (M.C.Z. 22540-4) Plantation No. 3, Du River. 
3 ex. (M.C.Z. 22545-7) Gbhanga. 
1 ex. (M.C.Z. 24009) Monrovia. 
Venomous snakes would appear to occur in greater numbers in Liberia than 
on the East Coast. Of the total number of species now known from Liberia, 
one in three are poisonous. Of the seventy specimens brought back by the 
Harvard Expedition thirty are dangerously venomous. ‘‘Two of these snakes 
were examined, one had eaten a toad, the other a frog. Of parasites there were 
filariids in the general cavity, lingatulids in the lung.” 
Causus lichtensteini (Jan) 
1 ex. (M.C.Z. 22536) Du River Plantation, No. 3. 
1 ex. (M.C.Z. 22537) North of Moala. 
Color in life of Du River snake ‘Back burnt sienna with dark V-shaped 
marks. Belly grayish white.’’ The Moala snake is recorded as being ‘“‘ A bright 
golden brown with very small black chevrons on the back. Border of upper lip 
light yellow. Belly white with pearly iridescent reflections.” 
Bitis gabonica (Duméril and Bibron) 
1 ex. (M.C.Z. 22548) Paiata, St. Paul’s River. 
1 ex. (M.C.Z. 22549) Lenga Town. 
Bitis nasicornis (Shaw) 
1 ex. (M.C.Z. 22550) Paiata, St. Paul’s River. 
Biittikofer’s colored plate of B. rhinoceros (which is a synonym of B. nasi- 
cornis) represents a composite animal for it has the internasal horn-like processes 
of B. nasicornis and the coloring of B. gabonica. The very characteristic arrow- 
