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American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 05     Pages: 13-16 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

 

 

 

 

 

 

 

 

 

 

 

 

ABSTRACT 

The article provides information on the species composition of the representatives of the genus "Deroceras 

rafinesque, 1820" found in the Surkhan-Sherabad valley. 

KEYWORDS 

Surkhan-Sherabad valley, Deroceras rafinesque, gastropod molluscs, economic significance, distribution. 

INTRODUCTION 

It is known that in recent years, great attention has 

been paid to faunistic research in our republic, 

including the study of the diversity of molluscs, the 

assessment of their current state, the analysis of the 

processes of change in them, the development of 

measures to protect rare species and fight against 

harmful species. is being conducted. 

Most gastropods have an external shell, but some have 

a reduced shell and are called nudibranchs because 

they secrete a lot of mucus from their bodies. 

The beautiful and colorful shells of bivalve molluscs 

attract not only zoologists, but also collectors, and as a 

result, they are now very well studied. However, slime 

worms have not yet been fully studied in this regard. 

  Research Article 

 

SPECIES COMPOSITION OF DEROCERAS RAFINESQUE, 1820 

GENERATION FOUND IN SURKHAN-SHEROBAD VALLEY 
 

Submission Date: May 08, 2023, Accepted Date:  May 13, 2023,  

Published Date: May 18, 2023  

Crossref doi: https://doi.org/10.37547/ajahi/Volume03Issue05-03 

 

 

Abdulazizova Shoira Karimovna 
Termez State University, Docent. Termez. Uzbekistan 

 

Kalandarova Oyimjon Muzaffarovna 
Termez State University, Master. Termez. Uzbekistan 

 

Yakubova Mutabarhon Taibjon Kizi 
Termez State University, Master. Termez. Uzbekistan 

 

Abduvaliyev Javohir Ulugbek Ugli 
Termez State University, Student. Termez. Uzbekistan 

Journal Website: 

https://theusajournals.

com/index.php/ajahi 

Copyright: Original 

content from this work 

may be used under the 

terms of the creative 

commons attributes 

4.0 licence. 

 

https://theusajournals.com
https://doi.org/10.37547/ajahi/Volume03Issue05-03


Volume 03 Issue 05-2023 14 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 05     Pages: 13-16 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

   Currently, more than 150 species of slime worms are 

found in the fauna of the world, of which 24 species are 

distributed in Central Asia, and 18 species are 

distributed in Uzbekistan. 

Therefore, the study of slime worms is of great 

theoretical and practical importance. The reason: 

firstly, they are a heterogenous group, forming a 

complex of animals of different origin and playing an 

important role in studying the evolution of 

systematically distant groups. 

From this point of view, we aimed to determine the 

taxonomic composition of slime worms distributed in 

the Surkhan-Sherabad valley, ecological-faunistic 

analysis, and to determine the composition of 

economically important species. 

Research materials in the Surkhan-Sherabad valley in 

2021 - 2023: Termiz city and surrounding parks and 

stream banks, Uchkizil and Oktepa reservoirs, along 

the right and left banks of the Surkhandarya river, the 

areas from the village of Jairakhona to the South 

Surkhan reservoir, Laylakkhana, Azod, Khursand, It 

was collected from various biotopes around the 

Beshtom villages and from the gardens of the 

surrounding villages. 

Collection of research materials was carried out 

according to the methods of A.Y. Viktor and I.M. 

Likharev [3], T.S. Rymzhanov and A.A. Shileyko [5].  

According to the results of the conducted research, the 

following species of naked slime belonging to the 

genus Deroceras were identified from the research 

area.  

family AGRIOLIMACIDAE Wagner, 1975  

DEROCERAS  Rafinesque, 1820 generation 

Body size does not exceed 60 mm when moving. When 

the body shrinks, its expansion corresponds to the 

mantle part. The mantle is 1/3 of the entire body. 

The body consists of the same colored or black spots, 

and sometimes it looks like sprinkles. 

It is distributed in the Northern Hemisphere.  

Deroceras (Deroceras) laeve Muller, 1774  

Material: 18 copies. Picked from the Surkhan-Sherabad 

valley, especially from the gardens of the village of 

Zhairankhana.   

Body structure. This slime worm is mobile, and its body 

structure is cylindrical, and when it is contracted, it has 

a glove-like appearance. The mantle is rather large, 

circular from the back when alive, and triangular after 

fixation. During movement, the head and neck are 

stretched forward. The keel is short and slightly blunt, 

visible only during movement. 

The length of the body is up to 25 mm during 

movement, 13-15 mm when shortened. When the 

mantle is reduced to 10 mm, it is 5-7 mm [4]. 

Ecology. Common in all biotopes. It lives mainly among 

the grasses on the banks of the ditches and among the 

rice crops in the irrigated lands [3]. 

Spread. Common in all regions of the Commonwealth 

of Nations. Many countries in the Southern 

Hemisphere have been "introduced" by human 

activity. 

Deroceras (Agriolimax) agreste Linnaeus, 1758  

Material: 14 copies were collected from the village of 

Jairakhana, South Surkhan reservoir and its 

surroundings.  



Volume 03 Issue 05-2023 15 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 05     Pages: 13-16 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

Body structure. The back of the body is slightly convex 

or semi-rounded. The mantle occupies 1/3 of the body. 

The color of the body is light yellow, and sometimes it 

consists of liver-like stripes, there are no black stripes 

on the body, if it is blinar - it is unknown. 

The length of the body during movement is 35-40 mm 

[3]. 

Ecology. It is found mainly in the plains, in the pre-

mountain region it lives among various grasses on the 

banks of streams or under small stones. 

Spread. Widespread in all regions of the 

Commonwealth of Nations. 

Economic importance. In addition to damaging various 

crops, the helminth plays an important role as an 

intermediate host of diseases.   

 Deroceras reticulatum Muller, 1774  

Material: 19 copies. Collected from different biotopes 

in more than 15 places of the study area. 

Body structure. The body is rather thick, the back is 

convex, and the back part is shortened as a "cline". 

Mantle covers 2/5 of the body. The color of adult 

animals is light brown. Most of its body is covered with 

black-brown, black-brown, spotted stripes. 

The length of the body is 35-45 mm, 25 mm in the 

reduced state [4]. 

Ecology. Lives mainly in open biotopes. Avoids 

woodland and scrub. Widespread in more 

anthropogenic biotopes. During the day, it hides under 

branches, rocks, in cracks [4]. 

Spread. Widespread in the territories of the 

Commonwealth of Nations, it is considered an 

"introducer" brought to the Central Asian countries 

[4]. 

Economic importance. Its main food is the green part 

of plants, and it also eats ground fruits. Butterflies 

cause great damage to various vegetable crops. 

Deroceras sturanyi Simroth, 1889. 

The structure of the body and reproductive organ 

corresponds to the literature [1, 2, 4, 5]. 

Morphological structure. The body is thin, the back end 

is sharply narrowed. The skin is thin and delicate. The 

mantle is relatively long: its back part is located on the 

back half of the body. The color is uniform, light or 

straw yellow. When fixed, the length is 18-25 mm. 

Ecology. Lives in biotopes not far from parks and police 

fields [4]. 

Spread. It is distributed in Central and Eastern Europe 

and spread to Central Asian countries under the 

influence of anthropogenic forces [4]. 

 Deroceras (Liolytopelte) caucasicum Simroth, 1901 

Material: 17 copies. It was collected from various 

biotopes around the villages of Laylakkhana, Azod, 

Khursand, Beshtom and the gardens of the 

surrounding villages. 

Body structure. The size of the mantle is 1/3 of the 

body. There are 16-18 rows of wrinkles in the middle 

part of the body with a hole in the mantle. The color of 

the body is variable: brownish-yellow, whitish, 

sometimes brownish-black. The neck of the tentacles is 

dark, the legs are pale yellow. The front part of the 

body is black. The color change of his body directly 

depends on the biotope where he lives. Those living in 

shady areas have a pale dirty color, and those living in 

bright areas have a brownish-yellow color. 



Volume 03 Issue 05-2023 16 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 05     Pages: 13-16 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

The length of the body during movement is 45-50 mm. 

30-35 mm when fixed. 

Ecology. Widespread in flat areas. It lives mainly under 

the leaves of various plants, among herbaceous plants 

[4]. 

Spread. It is considered an "introductory" species for 

the territory of the Caucasus, Central Asia [4]. 

Economic importance. It causes great damage to 

potato, cabbage, and tomato plants. 

As a result of the conducted research, it became 

known that 5 species are distributed in the Surkhan-

Sherabad valley. 

REFERENCES 

1. Абдулазизова Ш. Биологическое 

разнообразие наземных моллюсков Сурхан-

Шерабадской долины и окружающих её 

горных хребтов.: Автореф. дис. ...PhD по 

биол.наук. – Ташкент, 2019. – 20 с. 

2. Абдурасулова С.Ш. Ўзбекистон ҳудудида 

тарқалган шиллиққуртлар (Gastropoda 

Terrestriya Nuda) фаунаси, экологияси ва 

хўжалик аҳамияти.: Автореф. дис. ...PhD по 

биол.наук. – Гулистон, 2023. – 20 б. 

3. Лихарев И.М., Виктор А.Й.  Слизни фауны 

СССР и сопредельных стран (Gastropoda 

Terrestria Nuda) Фауна СССР. Моллюски. – 

Ленинград: Наука, 1980. –Т.3. –Вып.5. – № 122. 

–  437 с. 

4. Пазилов А., Азимов Д.А. Наземные моллюски 

(Gastropoda, Pulmonata) Узбекистана и 

сопредельных территорий. - Ташкент: Фан, 

2003. – 315. С. 

5. Шилейко А.А., Рымжанов Т.С. Фауна 

наземных моллюсков Казахстана и 

сопредельных территорий. Москва–Алма-

Ата: Товарищество научных издание КМК, 

2013. – 389 с. 

 


