Amarillo& Hogaboomorum difference

[Regalblue]

Can somebody please tell me the difference between the two?
Is it the number scales in a row? Or something like that?

I'm looking for actual taxonomy differences. NOT " one gets more yellow when in breeding dress"

Thanks in advance

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[Modest_Man]

Best I can do right now-

Currently, there are nine species described in the Midas species complex: Amphilophus amarillo Stauffer and McKaye (Lake Xiloa´ endemic), Amphilophus astorquii Stauffer, McCrary and Black (Lake Apoyo endemic), Amphilophus chancho Stauffer, McCrary and Black (Lake Apoyo endemic), A. citrinellus (Gu¨ nther), Amphilophus flaveolus Stauffer, McCrary and Black (Lake Apoyo endemic), Amphilophus labiatus (Gu¨ nther), Amphilophus sagittae Stauffer and McKaye (Lake Xiloa´ endemic), Amphilophus xiloaensis Stauffer and McKaye (Lake Xiloa´ endemic) and Amphilophus zaliosus Barlow (Lake Apoyo endemic) (table 1). Rapidly evolving genetic markers can discern many of these species (Barluenga & Meyer 2004; Barluenga et al. 2006; Elmer et al. 2009), though not all species have been suitably investigated. We expect that more species from the crater lakes will be described in the future and that the taxonomic validity of the original species A. ‘citrinellus’ will need to be revisited. Therefore, we refer to Midas cichlids found in multiple crater lakes as A. cf. citrinellus.
Midas cichlids are polymorphic for trophically relevant attributes such as body shape, pharyngeal jaw apparatus and hypertrophied lips. Limnetic species A. sagittae and A. zaliosus are elongate ecotypes with papilliform pharyngeal jaws, while benthic species such as A. astorquii, A. chancho and A. flaveolus in Apoyo and A. amarillo and A. xiloaensis in Xiloa´ are more high bodied and tend to have molariform pharyngeal jaws (Barlow & Munsey 1976; Vivas & McKaye 2001; Klingenberg et al. 2003; Parsons et al. 2003; Barluenga et al. 2006). Amphilophus labiatus has a slightly more elongate body, more pointed snout, lateral compression and, most obviously, dramatically hypertrophied lips compared with A. citrinellus (Barlow & Munsey 1976; Klingenberg et al. 2003). A similarly thick-lipped ecotype is found at moderate frequencies (approx. 20%) in Lake Apoyeque, where it occupies an ecological niche distinct from the more abundant thin-lipped morph (K. R. Elmer, T. K. Lehtonen & A. Meyer 2010, unpublished data), and much more rarely in lakes Masaya and Xiloa´ (Barlow 1976; McKaye et al. 2002).

(iii) Crater lake Xiloa´: three species
There are significant body shape differences between all three Xiloa´ Midas cichlid species (figure 7, table 7). Amphilophus sagittae has the most distinct morphology, evidenced by high interspecific Procrustes distances and differentiation along CV1. Amphilophus amarillo and A. xiloaensis are primarily differentiated along CV2. CV1 encodes a shape change in head size, midbody depth (LM 6–10) and caudal peduncle length (LM 11–15) (data not shown). Amphilophus amarillo is the most similar to the average Xiloa´ Midas cichlid shape, except for being slightly more high bodied (LM 6) and having the anal fin shifted ventro-rostrally (figure 7b). Amphilophus sagittae has a relatively small head and eye (LM 1–5), is elongated through the mid-body and caudal peduncle (LM 5, 6, 9–10, 13– 15) and differs most from consensus. Amphilophus xiloaensis is slightly more deep bodied (LM 6–9) with a shorter caudal peduncle (LM 13–15) and a longer lower jaw (LM 2 and 5).

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2871887/pdf/rstb20090271.pdf

I've gathered TPSDIGS landmarks on hatchery vs. wild salmonids and it still seems like mumbo-jumbo to me...

Here's a bit more -

Amphilophus amarillo, n. sp. (Fig. 4)
Holotype. – Penn State University Fish Museum (PSU) 3448.1, adult male, 154.6 mm SL from Agua caliente, Lake Xiloá (N 12° 13,848' W 86° 19,387'); Field No. JRS-93-64, 18 October, 1993 (3-10 m). Paratypes. – PSU 3448 (6 specimens, 107.6- 142.2 mm SL); data as for holotype. Diagnosis. – Amphilophus amarillo has a shorter snout (35.3-40.1% SL) and dorsal-fin base length (57.0-61.9% SL) than A. citrinellus (40.4-41.9%, 63.0-63.9% SL, respectively) and a shorter snout than Amphilophus granadensis (Meek) (40.5%SL). Amiphilophus amarillo has a shorter head (34.5-36.8% SL) than A. dorsatus (38.1-38.2% SL) and A. labiatus (37.8-39.5% SL). Body depth as measured by ADP2 is greater in A. amarillo (43.7-49.0% SL) than in either Amphilophus erythraeus (Günther) (41.8% SL) or A.
granadensis (36.5% SL).

Description. – Principal morphometric ratios are given in Table 9 and meristic values in Table 10. Both males and females are colored similarly (Fig. 5). Head with green ground coloration with yellow highlights; below cheek head is yellow; anterior portion of gular yellow, posterior portion red/orange. Interorbital region green with two dark green interorbital bars; preopercle green; posterior portion of opercle red/yellow/orange. Dorsally to upper lateral line, green with yellow highlights in some individuals and yellow in others;
middle 1/3 of lateral side yellow; ventral 1/3 green/ yellow; 6-8 black bars that appear as extension of midblack spots, the anterior bars extend into dorsal fin; black caudal spot that extends onto caudal fin. Belly yellow-green with black highlights. Dorsal fin green/gray; posterior rays orange in some individuals. Caudal fin with gray rays and clear membranes with orange highlights. Distal portion of anal-fin spines black, majority of anal-fin membranes green/gray with posterior portion orange. Pelvic fins green/gray with first ray black. Pectoral fins with clear membranes and rays with faint yellow markings on rays.

Etymology. – Specific epithet from Spanish meaning yellow to denote the yellow highlights throughout. A noun in apposition.

Measurements Holotype Mean St. Dev. Range
Standard length 154.6 125.8 15.9 107.6-154.6
Head length, mm 55.9 44.7 6.2 37.9-55.9
Percent of standard length
Head length 36.2 35.5 0.75 34.5-36.8
Snout to dorsal-fin origin 43.7 43.0 1.9 40.3-46.7
Snout to pelvic-fin origin 44.2 44.1 1.1 41.8-45.2
Caudal peduncal length 12.8 12.1 1.5 9.9-14.8
Least caudal peduncal depth 13.8 14.1 0.4 13.7-14.7
Dorsal-fin base length 61.1 59.7 1.8 57.0-61.9
ADAA 58.7 55.7 2.6 52.6-60.2
PDPA 16.3 16.2 0.7 15.4-17.4
ADPA 66.9 65.8 1.9 63.5-68.2
PDAA 37.2 37.4 1.3 35.1-39.5
PDVC 19.5 18.1 0.9 16.6-19.5
PADC 18.5 18.8 0.7 18.0-19.6
ADP2 47.7 46.4 1.8 43.7-49.0
PDP2 59.0 57.6 1.1 56.0-59.0
Percent head length
Horizontal eye diameter 25.8 28.8 2.6 25.8-32.5
Vertical eye diameter 25.9 27.7 1.9 25.6-30.8
Snout length 40.1 37.9 1.7 35.3-40.1
Postorbital head length 40.3 38.1 1.3 35.9-40.3
Preorbital depth 25.3 22.9 1.7 20.6-25.3
Lower-jaw length 36.9 40.6 2.0 36.9-43.3
Cheek depth 33.0 30.1 2.2 26.7-33.3
Head depth 102.8 106 4.2 102-113

Counts Holotype Mode % Freq. Range
Lateral-line scales 30 30 50 30-32
Pored scales posterior to lateral line 2 2 75 1-2
Scale rows on cheek 4 4 87.5 3-4
Dorsal-fin spines 17 17 62.5 16-17
Dorsal-fin rays 11 11-12
Anal-fin spines 7 7 87.5 6-7
Anal-fin rays 8 8 75 7-9
Pectoral-fin rays 15 15 62.5 15-16
Pelvic-fin rays 5 5 100
Gill rakers on first ceratobranchial 7 7 62.5 7-8
Gill rakers on first epibranchial 2 2 75 1-3
Teeth in outer row of left lower jaw 11 11 50 11-13
Teeth rows on upper jaw 3 3 87.5 2-3
Teeth rows on lower jaw 3 3 50 2-4

http://ecosystems.psu.edu/research/...stei-cichlidae-from-lake-xiloa-nicaragua/view

Not sure what good any of this will do for you.

 

[Regalblue]

Thank you
It's too late for me to try to understand most of this right now.
I REALLY appreciate it, but I'm gonna have to look it over tomorrow

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[fishman09]

Just like with dealing with most of the barred midas types all theyre doing is splitting hairs. Heres my male hoga if anyone wants to post up some amarillo for comparison. My hoga has a lot reds and pinks that im not seeing in amarillo pics to note and he is super tall bodied and extremely thick too. Same length as my red devil but easily twice the weight.

[video=youtube;WRgYMqTBvtk]https://www.youtube.com/watch?v=WRgYMqTBvtk[/video]

 

[Miguel]

Isn' the maximum size of Amarillo bigger than Hooga?

 

[Regalblue]

I am basically trying to see if I can differentiate my 2" Amarillos from the 3" Hogas I have.
& to also be sure the Hoga are what I bought.
The Amarillo came from a reputable source, but the Hoga came from somebody that I don't personally know

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