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Image of Colossendeis megalonyx arundirostris Fry & Hedgpeth 1969
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Colossendeis megalonyx arundirostris Fry & Hedgpeth 1969

Description

provided by NMNH Antarctic Invertebrates

“Colossendeis megalonyx arundorostris n. subsp. (Fig. 7,8, 11-14, 21, 23)

MATERIAL EXAMINED

Atka Sta. 4 (= AT-4), 78° 10'S, 162° 22'W to 78° 09'S, 162° 30'W; 610 m, 1 (holotype) U.S.N.M. Holotype No. 113000, 1 juvenile'.

DESCRIPTION

Trunk, proboscis, and appendages extremely slim and attenuated. Type specimen and juvenile com­pletely glabrous. Ovigeral spine field of configuration

NS: (Sp / A) : (MF / B) : ((N/P) / n=2)

in both specimens.

Dimensions

Type female

Juvenile

Left palp

24.87

16.56 mm

L. 9th segt.

2.13

1.19

L. 8th

1.99

0.93

L. 7th

0.40

0.26

L. 6th

2.8 x 0.33

1.69 x 0.26

L. 5th

1.99

1.19

L. 4th

7.05

4.39

L. 3rd

0.61

0.40

L. 2nd

7.90

6.51

L. proboscis

20.5

12.50

L. trunk

8.0

5.05

L. abdomen

2.4

1.33

Sep. lat. procs.

1.00

0.66

W. trunk across 2nd lat. procs.

5.2

2.2

3rd right leg

110.10

65.67

L. coxa 1

1.50

0.93

L. coxa 2

2.2

0.93

L. coxa 3

2.1

1.06

L. femur

30.2

16.76

L. tibia 1

24.5

14.60

L. tibia 2

22.3

13.30

L. tarsus

13.2

8.25

L. propodus

8.9

6.12

L. claw

5.2 (3rd left)

3.72

Relative Proportions

Type female

Juvenile

L. palp ÷ L. proboscis

1.21

1.32

L. palp ÷ L. trunk

3.11

3.28

L. leg ÷ L. proboscis

5.37

5.25

L. leg ÷ L. palp

4.43

3.96

L. leg ÷ L. trunk

13.76

13.00

L. proboscis ÷ L. trunk

2.56

2.47

L. femur ÷ L. tibia 1

1.23

1.15

L. femur ÷ L. tibia 2

1.32

1.26

L. tarsus ÷ L. propodus

1.48

1.35

L. claw ÷ L. propodus

0.59

0.65

“ (Fry & Hedgpeth 1969, p. 33, 34)

license
cc-by-nc
author
Fry & Hedgpeth 1969, p. 33, 34
project
Smithsonian National Museum of Natural History - Antarctic Invertebrates