Maxillae


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Maxillae

 

in myriopods and insects, the second pair of jaws; in crustaceans, the second and third pairs.

In the chewing insects, the maxillae are used to tear apart and puncture the prey or grind the food; in the sucking insects (for example, butterflies), they form the tongue. In myriopods and insects, the maxillae are modified extremities of the fifth head segment, and in crustaceans, of the fifth and sixth head segments.

References in periodicals archive ?
--Body dark yellow brown; 19-20 short, small thorns on prolateral maxillae (Fig.
Maxillae with 28 recumbent thorns in four rows prolaterally (Fig.
Maxillae with 24 recumbent thorns in about three lines above the suture prolaterally, plumose hairs and a row of long spines present below the suture; with ca 155 cuspules ventrally.
1999), but it can be distinguished by the dark yellow brown body (Figs.13, 14); 19-20 short, small recumbent thorns on prolateral maxillae, by the length of spermatheca about one-fifth of its width (Fig.
Stridulating setae on chelicerae and maxillae resembles (Fig.
3F) and a single or double row of paddle hairs, overlapped by a fringe of hairs on the maxillae (Fig.
Distal labium and prolateral maxillae with cuspules.
4A-C), with length similar to basal palpal bulb, fewer paddle-shaped setae on prolateral maxillae (Fig.
5A), with length much longer than basal palpal bulb, many paddle-shaped setae on prolateral maxillae 2
Groups Age No No No No Total (wks) males maxillae females maxillae No maxillae I <17 6 12 0 0 12 II 17-20 8 16 0 0 16 III 21-25 7 14 1 2 16 IV 26-30 3 6 2 4 10 V >30 2 4 1 2 6 Table II.
Los Viscos, level 7: two skull fragments (PVL 5878; PVL 5879), one left mandible with m1-m2 (PVL 5880), three left mandibles with m1 (PVL 5881, PVL 5886, PVL 5884), two left mandibles with m1-m3 (PVL 5882, PVL 5885), one left mandible with m3 (PVL 5883), one right mandible (PVL 5887), three right mandibles with m1 and m3 (PVL 5888, PVL 5891, PVL 5893), two right mandibles with m1 (PVL 5889, PVL 5892), 1 right mandible with m1-m2 (PVL 5890), 1 left maxilla with zygomatic plate (PVL 5894), two left maxillae with M1-M2 and zygomatic plate (PVL 5895, PVL 5896), one left maxilla with M1-M3 (PVL 5897), two right maxillae with M1-M2 (PVL 5898, PVL 5899) and isolated molars and incisors (PVL 5900).
9d); like many sexually dimorphic jawfishes, the maxillae of adult females and young are shorter than those of large males (Fig.