= 
ORISMOLOGY. 305 
and many other Coleoptera, Orthoptera, and He- 
miptera. 
Bisecr (Bisectum). When the head and trunk are 
not separated by a suture, so that the insect con- 
sists only of two pieces. Ex. Aranea L. Puate V. 
Fic. 4. 
Coauire (Coalitum). When neither head, trunk, 
nor abdomen are separated by any incisure or su- 
ture. Ex. Many Acari L., Phalangium, &c. 
. Muurisecr (Multisectum). When an insect appears 
to have no distinct trunk and abdomen, but is di- 
vided into numerous segments. Ex. Scolopendra ; 
dulus, &c. ° Puate V. Fre. 6. 
. CympBirorm (Cymbiforme). When the margin of 
the thorax and elytra are recurved so as to give a 
body the resemblance of the inside of a boat. Ex. 
Helaus, Cossyphus. 
Il HEAD (Capru7). 
i. DIRECTION. 
ProMINnENnt (Prominens). When the head is in the 
horizontal line, and forms no angle with the trunk. 
Ex. Carabus L. Puare I. Fie. t. 
PorrecteD (Porrectum). When the head is pro- 
minent and elongate. Ex. Cychrus. 
NuTant (Nutans). When the head forms down- 
wards an obtuse angle with the horizontal line, or 
trunk. Ex. Harpalus. 
Cernuous (Cernuum). When the head forms 
downwards a right angle with the trunk. Ex. 
Most Grylli L. 
VOL. IV. x 
