GLOSSARY. 



43 



Refrigerate. To allay the heat of; to 

 refresh. 



Region. A Jarge tract or space of coun- 

 try. 



Regurgitated. Swallowed a second time ; 

 thrown or poured back. 



Remastkate. To chew over and over, as 

 in chewing the cud. 



Renascent. Springing or rising into be- 

 ing again. 



Reniform. Kidney-shaped. 



Reniculus. A small kidney-shaped spot, 

 as seen in the wings of some nocturnal 

 Lepidoptera. 



Rennet. The concreted milk found in 

 the stomach of a sucking quadruped, 

 particularly of the calf. 



Repand. Cut into very slight sinuations, 

 so as to run in a serpentine direction. 



Repletion. Superabundant fulness. 



Replicated. Folded or plaited, so as to 

 form a groove or channel. 



ReptUia. The class of vertebrate ani- 

 mals with imperfect respiration and 

 cold blood. They constitute an order 

 of the class Amphibia, including all 

 such as are furnished with limbs or ar- 

 ticulated extremities, as tortoises, liz- 

 ards, and frogs. 



Resilient. Leaping or starting back ; re- 

 bounding. 



Resplendent. Reflecting the light in- 

 tensely. 



Resupine. When an object lies upon its 

 back. 



Rete Mucosum. The cellular layer be- 

 tween the true skin and the scarfskin, 

 which is the seat of the peculiar color 

 of the skin. 



Reticulate; Reticulated. Formed like a 

 piece of network ; having distinct 

 veins or lines which intersect each 

 other in various directions, like the 

 meshes of a net. Applied to the areo- 

 lets of insects, when they are extreme- 

 ly small and infinitely numerous. 



Retiform. Composed of crossing lines 

 and interstices ; as, the retiform coat of 

 the eye. 



Retracted. When the head of an insect 

 is wholly withdrawn within the trunk. 



Retractile. Capable of\ being drawn 

 backwards. The claws of the cat 

 tribe. When an insect can at pleasure 



exsert its head or withdraw it within 

 the trunk. 



RetroJJected. Bent backwards. 



Retrograde. Going or moving back- 

 wards. 



Retromingent. Discharging the urine 

 backwards. 



Retrorse ; Retrorsed. Bent back. 



Retuse. Ending in an obtuse sinus ; as, 

 when the inner whorls of a spiral shell 

 appear to have been pressed into the 

 body of the shell, and the apex is be- 

 low the level of the last whorl. 



Reverse. When an object is viewed with 

 its anus towards you. 



Reversed. The spire of a shell is said to 

 be reversed or sinistral, when the volu- 

 tions turn to the left, or the opposite 

 way to that of a common corkscrew. 



Revivescent. Regaining, or restoring, 

 life and action. 



Revolute. Rolled outwards or backwards. 



Rhombiform. When the horizontal sec- 

 tion is rhomboidal. 



Ribbed. Having longitudinal or trans- 

 verse ridges. 



Rigid. Hard and stiff, so as not to bend 

 I or yield to pressure. 



Rima. A chink or interstice. 



Rimose. When any surface possesses 

 numerous minute narrow excavations, 

 running into each other ; chinkly, like 

 the bark of a tree. 



Rivose. When furrows do not run in a 

 parallel direction and are rather sin- 

 uate. 



Rorulent. Covered like a plum with a 

 bloom which may be rubbed off. 



Rostrate. When the anterior part of an 

 insect's head is elongated and attenu- 

 ated into a cylindrical or many-sided 

 rostrum or beak. 



Rostrum (of a shell). The beak, or its 

 extension, where the canal is situat- 

 ed. 



Rotatory. When a body or a part of it 

 turns wholly round, or describes a 

 circle. 



Rotifera. The name of the class of in- 

 fusorial animals, characterized by the 

 vibratile and apparently rotating cilia- 

 ry organs upon the head. 



Rotund. Round, circular, spherical. 



Rotundate; Rotundated. Blunted or 



