Terebellidae (Polychaeta: Terebellida) from the Grand Caribbean region 2320
Author
Londoño-Mesa, Mario H.
text
Zootaxa
2009
2009-12-22
2320
1
1
93
https://biotaxa.org/Zootaxa/article/view/zootaxa.2320.1.1
journal article
10.11646/zootaxa.2320.1.1
11755334
5316176
Streblosoma hartmanae
Kritzler, 1971
Streblosoma hartmanae
,
Kritzler, 1971:904
,
Figs 1–8
; 1984:52–66, 68, Figs 52–63, 64A-I.—Londoño-Mesa & Carrera- Parra, 2005:6–8;
Fig. 2
A-F.
Type material:
Holotype
USNM 43209
and
Paratypes
USNM 43210
(3)
Alligator Harbor
,
Franklin County
,
Florida
,
USA
(
29º54'11.7"N
84º24'51.4"W
),
28.XII.1969
.
Coll.
and donated
H. Kritzler
.
Additional material:
Gulf of Mexico
:
Florida
:
USNM 90570
(1)
Florida
(
27º56'30"N
83º53'W
),
VIII.1977
,
43m.
Veracruz State
:
UANL 5508
(2)
Blanca
,
14.IV.2002
;
Pl.
2.
UANL 6060
B (1)
Hornos
,
30.V.2003
;
Pl.
1.
UANL 6062
(1)
Pajaros
,
30.V.2003
;
Pl.
3.
Campeche State
:
ECOSUR
TERE-6 27A (1)
Laguna de Terminos
,
VII.1984
.
TERE-6 30–27A (1)
Laguna de Terminos
,
VI.1984
.
TERE-6 (2)
Laguna de Terminos
,
20.XI.1984
.
Yucatan State
: TERE-6 RIA2 (five vials with many, 1, 27, 1 and
1 specimens
),
Ria Lagartos
(
21°35'36.9"N
88°03'21.4"W
),
31.V.2005
.
Mexican
Caribbean
:
Quintana Roo State
: TERE-6 HOL1 (three vials with many, 1, 1)
Holbox
(
21º32'34.5"N
87º28'11.6"W
),
2.VI.2005
.
TERE-6 HOL4 (3)
Holbox
(
21º32'34.5"N
87º28'11.6"W
),
2.VI.2005
.
TERE-6 HOL5 (1)
Holbox
(21º32'364.5"N
87º28'11.6"W
),
2.VI.2005
.
TERE-6 HOL10 (1)
Holbox
,
3.VI.2005
.
TERE-6 RM3 (1)
Ascension
Bay
,
Sian Ka’an
(
19º37'05.57"N
87º35'33.3"W
),
29.IV.1987
. UQROO E-5 (1), E-6 (5) Chacmochuk (
21º21'22.2"N
86º50'22.2"W
),
5.IV.2000
. Panamanian
Caribbean
:
ECOSUR
TERE-6 (3) Club de Yates, Colon,
1.VI.2002
. TERE-6 (1) Club de Yates, Colon,
3.VI.2002
. TERE-6 (2) Sherman, Primer Arroyo, Colon,
30.V.2002
. Panamanian Pacific: TERE-6 (1) Culebra Point, Balboa,
30.V.2002
. TERE-6 (1) Puerto Rodman, Balboa,
31.V.2002
. Antilles:
ZMA
V.Pol. 1008A (2) Spaans Lagoen, NW side,
Aruba
,
1.I.1949
;
Rhizophora
, mud, tidal and lower zone.
ZMA
V.Pol. 1451 (1) Chasalie Exp.,
Tortugas
, 1896 (as
Thelepus setosus
).
ZMA
V.Pol. 1453 (3) Gulf of Cariaco,
Venezuela
(
10°30'30"N
63°55'14"W
),
31.I.1896
(as
Thelepus setosus
).
ZMA
V.Pol. 5288 (17) Spaans Lagoen, NW near new bridge,
Aruba
, Sta. 2018;
5.VIII.1970
; limestone with mud,
0.3– 0.5m
.
ZMA
V.Pol. 1596A (1) Lac. Boca jewfish, SN of sorobon,
Bonaire
,
24.VIII.1967
; sandy mud.
ZMA
V.Pol. 5304 (1) St. Joris Baai, S shore, SE,
Curaçao
, Sta. 1643;
23.X.1968
; decaying timber, mud,
Thalassia
.
UMML
22.985 (5) Gulf of
Honduras
(
19°52'N
85°29'W
), R/V “Pillsbury” Sta. 577;
22.V.1967
;
4413m
.
UMML
22.986 (1) Lesser Antilles, (
17°26'N
63°23'W
), R/V “Pillsbury” Sta. 965;
20.VII.1969
;
24m
.
UMML
22.987 (1)
Santa Lucia Island
, R/V “Pillsbury” Sta. 913;
10.VII.1969
;
4m
.
Eastern North America:
AMNH
4178 (7),
AMNH
4151 (1) St. Catherines Island, Liberty County, Georgia (no more data).
Diagnosis:
Holotype
complete, 85 segments,
58mm
long, thorax
24mm
long,
1mm
wide. Eyespots abundant, larger near margin, arranged in two or three lines. First pair of branchiae with 7–9 filaments, placed laterally and anteriorly to first pair of notopodia; second and third pairs with 5–6 filaments each, placed dorsally to notopodia. Nephridial papillae not seen. Fourteen ventral shields. Thirty pairs of notopodia; notochaetae of two lengths asymmetrically bilimbate. Pairs of neuropodia short and narrow along the body; thoracic and abdominal uncini avicular, with dental formula MF:2:3. Pygidium smooth.
Staining pattern:
Only ventral shields stain deeply. Notopodial glandular tissue also stains well; other structures not stained.
Variations:
Paratypes
have 70 segments,
50mm
long, thorax
1mm
wide; first pair of branchiae with 12–14 filaments, placed laterally and anteriorly to first pair of notopodia; second and third pairs with 7–8 filaments, and 5–6 filaments, respectively; and 28 pairs of notopodia. Other variations are presented in additional specimens; the total length may be
11–50mm
, and thoracic width
0.4–2.1mm
. Complete specimens have 53–75 segments, and 20–42 pairs of notopodia meaning relations segments/chaetigers of 1.7–3.3. Thus, the number of segments with notochaetae does not depend on the total number of segments present. Ventral shields vary from segments 1–2, along 11–16 segments. Eyespots forming continuous row across dorsum, lateral groups may be absent. Commonly, specimens have anterior chaetae longer than posterior ones, as it is in some other species of terebellids, such as
Terebella verrilli
, and
Streblosoma
species.
The uncinal formula may be MF:2.1. In juveniles, the number of branchial filaments is 4 for the first pair of branchiae, 2 for the second and third pairs, while in adults there are up to 21 filaments for the first pair of branchiae, and 13–14 filaments for the second and third pairs. Nevertheless, juveniles are recognized not only by the low number of branchial filaments, but also by having smaller filaments and fewer tentacles. Specimens from Balboa and
Colon
,
Panama
, have long digitate nephridial papillae on segments 3, 4, 5, and on segments 4, 5, 6, respectively for each locality, placed posterior to notopodium. Some specimens present a yellowish tube with small sand grains, or whitish tube with thin sea grass filaments, which depends on the available material, not being a diagnostic feature.
Discussion:
A complete description of the species is given by
Londoño-Mesa and Carrera-Parra (2005)
, based upon additional specimens from the Mexican
Caribbean
. The
type
specimen was not available for this study, although the original description is extensive. This species was considered occurring in the
Caribbean
; nevertheless, it has been found on the Pacific side of
Panama
, near the
Panama
Canal. This distribution could be due to the effect of the ships crossing the Canal, perhaps transporting planktonic larvae or juveniles, from coast to coast by ballast water. Similar distributions have been found for other species of
Terebellidae
by
Londoño-Mesa (2006)
.
Type
locality:
Alligator Harbor
,
Franklin County
,
Florida
.
Distribution:
Georgia
and
Florida
,
USA
; Gulf of Mexico, Mexican
Caribbean
, Panamanian
Caribbean
and Pacific,
Aruba
,
Bonaire
,
Curaçao
. From shallow to deep waters.