Records of the genus Henricia Gray, 1840 (Echinodermata: Asteroidea: Echinasteridae) from Chinese waters
Author
Xiao, Ning
Author
Liao, Yulin
Author
Liu, Ruiyu
text
Zootaxa
2011
3115
1
20
journal article
45876
10.5281/zenodo.279350
c78c31af-c6de-416b-b937-77a68326b403
1175-5326
279350
Henricia leviuscula leviuscula
(
Stimpson, 1857
)
Figures 7
A–G, 12A–B
Linckia leviuscula
Stimpson, 1857
: 529
.
Cribrella laeviuscula
Whiteaves, 1878
: 466
.—
Clark, 1901
: 327
.
Cribrella laeviuscula crassa
Clark, 1901
: 327
.
Cribrella laeviuscula attenuata
Clark, 1901
: 328
.
Henricia leviuscula
Fisher, 1910
: 570
; 1911: 280, pl. 69, figs 1,2, pl. 70, figs 1,2, pl. 71, figs 2,3, pl. 111, fig. 6; 1930, 195.—
Verrill, 1914
: 215
, pl. 12, figs 5, 6, pl. 13, figs 1, 2.—
Uchida, 1928
: 791
, Text-fig. 2.—
Hayashi, 1940
: 128
, pl. 8, figs 14, 15.—
Chang, 1948
: 40
, pl. 4, figs 1, 2, pl. 5, figs 1, 2.—
Chang, & Woo, 1954
: 124
.—
Djakonov, 1950
: 95
, pl.28, 79, 80, 83, 84; 1961: 23.—
Chang
et al
., 1964
: 65
.—
Lambert, 1981
: 100
.—
Maluf, 1988
: 43,124.—
Xu, 1994
: 637
.—
Liao & Sun, 1996
: 466
, fig. 18–15.—
Shin
& Rho, 1996
: 333
, pl. 21, figs a–h.—
Liao, 2008
: 852
.
Material examined. Bohai Sea.
Two (R 45–
41 mm
, r
9.4 mm
, R: r 4.8–4.4; R 54–
50 mm
, r
11 mm
, R: r 4.9–4.5), Dry specimens, Qimu Island, NW Longkou,
16 Jun 1956
.
Ye l lo w S e a.
One (R 27–
24 mm
, r
5.8 mm
, R: r 4.7–4.1), MBM175707, CN 53-13, Xiaoping Island, SW Dalian, coll. WU,
22 Nov 1953
; One (R 30–
27 mm
, r
6.7 mm
, R: r 4.5–4.0), MBM175708, CN 56-447, Xiaoping Island, SW Dalian,
15 Oct 1956
; One (R 37–
33 mm
, r 7.0 mm, R: r 5.3–4.7), Dry specimen, Xiaoping Island, SW Dalian, 1956; One (R 22–
18 mm
, r
4.8 mm
, R: r 4.6–3.8), MBM175694, CN 4176, Lidao Island, E Rongcheng, coll. MA,
18 Jul 1951
; One (R 48–
44 mm
, r
9.8 mm
, R: r 4.9–4.5), Dry specimen, CN Y411B-17, Stn. 3043, 35°30ʹN, 120°00ʹE,
29 Oct 1959
; One (R 32–
31 mm
, r
6.7 mm
, R: r 4.8– 4.6), Dry specimen, CN 56-260, Lidao Island, E Rongcheng,
6 Jul 1956
; One (R 31–
30 mm
, r
6.7 mm
, R: r 4.6–4.5), Dry specimen, Lidao Island, E Rongcheng,
23 Jun 1956
; One (R 38–
35 mm
, r
7.2 mm
, R: r 5.3–4.9), Dry specimen, Lidao Island, E Rongcheng,
15 Apr 1957
; One (R 24–
22 mm
, r
5.5 mm
, R: r 4.4–4), Dry specimen, CN 56-250, Lidao Island, E Rongcheng,
24 Jun 1956
; One (R 28–
24 mm
, r
6.2 mm
, R: r 4.2–3.9), Dry specimen, CN 1956-434, Haiyang Island, E Dalian,
27 Sep 1956
; One (R 26–
21 mm
, r
5.8 mm
, R: r 4.5–3.6), Dry specimen, Yantai, 1936; One (R 42–
37 mm
, r
8.3 mm
, R: r 5.1–4.5), Dry specimen, Dongchu Island, Rongcheng,
17 May 1954
; One (R 37–
35 mm
, r
7.3 mm
, R: r 5.1– 4.8), Dry specimen, Chengshantou, E Rongcheng,
Jul 1935
; One (R 31–
28 mm
, r
6.6 mm
, R: r 4.7–4.2), Dry specimen,
Jiaozhou Bay
,
15 May 1936
; One (R 35–
28 mm
, r
8.1 mm
, R: r 4.3–3.5), Dry specimen, CN K259, Dalian,
25 Oct 1958
; Two (R 48–
43 mm
, r 9.0 mm, R: r 5.3–4.8; R 23–
22 mm
, r
5.6 mm
, R: r 4.1–3.9), Dry specimens, CN 56-247, Lidao Island, E Rongcheng,
21 Jun 1956
; One (R 59–
57 mm
, r
10.6 mm
, R: r 5.6–5.4), Dry specimen, CN 0 109, Qingdao,
31 Mar 1937
; One (R 95–
90 mm
, r
18.3 mm
, R: r 5.2–4.9), Dry specimen, Lianyungang,
10 Oct 1955
.
FIGURE 7.
Henricia leviuscula leviuscula
(Stimpson)
. A, abactinal view; B, actinal view; C–D abactinal ray; E, actinal ray; F, cleared abactinal ray; G, cleared actinal ray showing intermarginal areas.
Distribution.
Bohai Sea, Yellow Sea,
Japan
Sea,
Korea
Strait, and Aleutian Island to southern California,
0–
400 m
.
Remarks.
This species is distinguished by the numerous short, almost granuliform spinelets, the three regular series of marginal and ventrolateral plates and intermarginal areas (
Fig. 7
G) confined to small triangular spaces at arm base. Spinelet tips (
Fig. 12
A) are pointed rather than blunt, as indicated in Hayashi’s (1940) description of the species. In our specimens the morphology of most spinelets corresponds well with his description. We observed the character of spinelets in two large dry specimens that are the last ones in material examined is peculiar. Spinelet tips (
Fig. 12
B) were globular and hyaline and under magnification, they appeared pearly and bead like.
Fisher (1911c)
noticed the quite distinct variation and mentioned that this variation in spinelet morphology may be due to either greater age of the organism or the action of waves. We further examined these two specimens and found that on the ventral surface the tips of spinelets were sharper and less globular. In other words, the tips of spinelets have a tendency to be globular from ventral surface to dorsal surface. They agree with Fisher’s descriptions.