Revalidation of Leucetta floridana (Haeckel, 1872) (Porifera, Calcarea): a widespread species in the tropical western Atlantic
Author
Valderrama, Diego
Author
Rossi, André Linhares
Author
Solé-Cava, Antonio Mateo
Author
Rapp, Hans Tore
Author
Klautau, Michelle
text
Zoological Journal of the Linnean Society
2009
2009-09-30
157
1
1
16
https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2009.00522.x
journal article
10.1111/j.1096-3642.2009.00522.x
0024-4082
GENUS
LEUCETTA
HAECKEL, 1872
Type
species:
Leucetta primigenia
Haeckel, 1872
(by original designation).
Table 2.
Spicule measurements (Mm) of
Leucetta
spp.
| Length (Mm) |
Width (Mm) |
| Spicules |
Min. |
Mean |
SD |
Max. |
Min. |
Mean |
SD |
Max. |
N
|
N |
| Clade A |
|
Leucetta floridana
|
| Triactine I |
98.9 |
145.7 |
20.6 |
224.4 |
7.8 |
15.3 |
2.9 |
33.0 |
718 |
24 |
| Triactine II |
178.5 |
732.1 |
369.2 |
1864.8 |
21.0 |
94.8 |
52.8 |
233.1 |
636 |
24 |
| Tetractine I |
90.0 |
142.0 |
23.5 |
227.7 |
6.0 |
14.4 |
3.0 |
30.6 |
723 |
24 |
| Tetractine II |
237.7 |
761.2 |
355.6 |
2097.9 |
34.8 |
124.3 |
52.5 |
270.0 |
182 |
19 |
| Clade B |
|
Leucetta
sp.
|
| Triactine I |
72.8 |
139.8 |
18.9 |
204.0 |
7.8 |
13.7 |
2.1 |
18.2 |
178 |
06 |
| Triactine II |
145.6 |
485.0 |
216.7 |
1102.5 |
20.8 |
64.1 |
30.5 |
148.2 |
135 |
06 |
| Tetractine I |
84.0 |
141.8 |
25.7 |
214.5 |
6.0 |
13.6 |
2.9 |
23.1 |
179 |
06 |
| Tetractine II |
236.3 |
562.4 |
208.9 |
938.6 |
41.7 |
87.7 |
34.3 |
148.2 |
22 |
05 |
| Clade C |
|
Leucetta microraphis
|
| Triactine I |
50.2 |
152.5 |
31.2 |
228.0 |
8.3 |
14.0 |
3.2 |
28.1 |
240 |
06 |
| Triactine II |
167.9 |
618.9 |
363.6 |
1631.7 |
14.6 |
71.0 |
47.3 |
264.1 |
172 |
06 |
| Tetractine I |
68.4 |
132.1 |
22.5 |
225.0 |
4.6 |
11.2 |
2.3 |
24.0 |
241 |
06 |
Min., minimum; Max., maximum; SD, standard deviation;
N
, number of spicules measured;
N
, number of specimens analysed.
Table 3.
Pairwise spicule size comparisons
|
L. floridana
¥
|
Leucetta
sp.
¥
|
L. floridana
¥
|
L. floridana
|
| Spicule type |
L. microraphis
|
L. microraphis
|
Leucetta
sp.
|
Caribbean ¥ Brazil |
| Triactine I |
| Length |
12.00 |
2.453
*
|
1.846 |
56.50 |
| Width |
0.877 |
1.018 |
12.00 |
58.50 |
| Triactine II |
| Length |
1.059 |
1.618 |
2.244
*
|
58.00 |
| Width |
1.420 |
0.305 |
1.777 |
54.00 |
| Tetractine I |
| Length |
1.660 |
0.745 |
0.392 |
2.390
*
|
| Width |
3.710
*
|
1.939 |
0.727 |
0.708 |
| Tetractine II |
| Length |
– |
– |
0.658 |
1.787 |
| Width |
– |
– |
0.990 |
1.185 |
L.
,
Leucetta
;
t
-test value or Mann-Whitney
U
; *
P
<0.05. Underlined text indicates Mann–Whitney
U
test results.
Diagnosis:
Leucettidae
with a homogeneous organization of the wall and a typical leuconoid aquiferous system. There is neither a clear distinction between the cortex and the choanoskeleton, nor the presence of a distinct layer of subcortical inhalant cavities. The atrium is frequently reduced to a system of exhalant canals that open directly into the osculum or may be a large cavity (modified from
Borojevic
et al.
, 2002
).