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135 GILLS – located under the carapace on either side of the thorax. GLAIR – the 'glue' that connects the eggs to the female's swimmerets. Glair is produced in glands under the tail which are visible and white color when mature. GONOPOD –the first pleopod of the male crayfish that has been modified to transfer sperm to the female. See "pleopod". GREEN GLANDS – the 'kidneys' of the crayfish which filter waste out of the blood as well as pump excess water via pores located at the base of the antennae. HEAD – the front portion of the carapace. MAXILLIPEDS – the "jaw-feet". The three pair of appendages at the mouth that shred food and feed it into the mouth and esophagus. MEDIAN CARINA – "middle ridge"; the 'bump' in the center of the rostrum of certain crayfish species. PALM – the base of the chela from which projects the fixed and moveable fingers (dactyl). PERIOPOD – the first five pairs of legs. The first pair of periopods carries the chelae. The next two pair are dual purpose limbs which can be used as walking legs while the tiny pincers on the end are searching for and picking up food items. The fourth and fifth pairs are true walking legs. PLEOPOD – one of the five paired appendages on the bottom of the abdomen (the 'tail'). The first pleopod is modified to transfer sperm to the female. The rear four pair are also known as swimmerets. see "gonopod". ROSTRUM – the portion of the carapace that extends out over the eyes. SEMINAL RECEPTACLE – see "annulus ventralis". SETAE – the thin hairlike filaments between the fingers of the chelae or on the tip of the first pleopod of some crayfishes SWIMMERETS – see "pleopod". TAIL FAN – the flattened rearmost section of the crayfish's abdomen or 'tail' composed of the telson and uropods. Used to rapidly retreat from danger ("to crawfish"). TELSON – the center scale of the tail fan. THORAX – the rear portion of the carapace. UROPODS – the paired scales on either side of the telson which make up the tail fan.